Names of 123456
| Nominal | 123456 |
| Cardinal | one hundred twenty-three thousand four hundred fifty-six |
| Ordinal | 123,456th |
| This number as US currency | one hundred twenty-three thousand four hundred fifty-six dollars |
| Is 123456 an odd number? | 123456 is NOT an odd number |
| Is 123456 an even number? | 123456 is an even number |
| Is 123456 a palindrome? | 123456 is NOT a palindrome number |
| Is 123456 a triangle number? | 123456 is NOT a triangle number |
123456 in other Bases
| Base 2 (Binary) | 111100010010000002 |
| Base 3 (Ternary) | 200211001103 |
| Base 4 (Quaternary) | 1320210004 |
| Base 5 (Quinary) | 124223115 |
| Base 6 (Senary) | 23513206 |
| Base 8 (Octal) | 3611008 |
| Base 12 (Duodecimal) | 5B54012 |
| Base 16 (Hexadecimal) | 1E24016 |
| Base 20 (Vigesimal) | F8CG20 |
Primes and Factors tests for 123456
| Is 123456 a Prime Number? | 123456 is NOT a prime |
| Is 123456 a perfect number? | 123456 is NOT a perfect number |
| Is 123456 a Mersenne Prime? | 123456 is NOT a Mersenne prime |
| Is 123456 a Fermat Prime? | 123456 is NOT a Fermat prime |
| Is 123456 a Fibonacci Prime? | 123456 is NOT a Fibonacci prime |
| Is 123456 a Partition Prime? | 123456 is NOT a Partition prime |
| Is 123456 a Pell Prime? | 123456 is NOT a Pell prime |
| Prime Factors | Prime factors of 123456 |
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123456 in other Numerals
| 123456 in Roman Numeral | CXXMMMCDLVI |
| 123456 in Chinese Numeral | 壹拾萬貳萬叄仟肆佰伍拾陸 |
| 123456 in Egyptian Numeral | 𓆐𓂮𓆾𓍥𓎊𓏿 |
| 123456 in Babylonian Numeral |    |
Roots and stuff for 123456
| Is 123456 a square number? | 123456 is NOT a square number |
| Is 123456 a cube number? | 123456 is NOT a cube number |
| Square root of the number 123456 | 351.36306009596 |
| Cube root of the number 123456 | 49.79327984674 |
Recreational math for 123456
| Number 123456 reversed | 654321 |
| Sum of the digits | 21 |
| No of digits | 6 |