Names of 121561
| Nominal | 121561 |
| Cardinal | one hundred twenty-one thousand five hundred sixty-one |
| Ordinal | 121,561st |
| This number as US currency | one hundred twenty-one thousand five hundred sixty-one dollars |
| Is 121561 an odd number? | 121561 is an odd number |
| Is 121561 an even number? | 121561 is NOT an even number |
| Is 121561 a palindrome? | 121561 is NOT a palindrome number |
| Is 121561 a triangle number? | 121561 is NOT a triangle number |
121561 in other Bases
| Base 2 (Binary) | 111011010110110012 |
| Base 3 (Ternary) | 200112020213 |
| Base 4 (Quaternary) | 1312231214 |
| Base 5 (Quinary) | 123422215 |
| Base 6 (Senary) | 23344416 |
| Base 8 (Octal) | 3553318 |
| Base 12 (Duodecimal) | 5A42112 |
| Base 16 (Hexadecimal) | 1DAD916 |
| Base 20 (Vigesimal) | F3I120 |
Primes and Factors tests for 121561
| Is 121561 a Prime Number? | 121561 is NOT a prime |
| Is 121561 a perfect number? | 121561 is NOT a perfect number |
| Is 121561 a Mersenne Prime? | 121561 is NOT a Mersenne prime |
| Is 121561 a Fermat Prime? | 121561 is NOT a Fermat prime |
| Is 121561 a Fibonacci Prime? | 121561 is NOT a Fibonacci prime |
| Is 121561 a Partition Prime? | 121561 is NOT a Partition prime |
| Is 121561 a Pell Prime? | 121561 is NOT a Pell prime |
| Prime Factors | Prime factors of 121561 |
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121561 in other Numerals
| 121561 in Roman Numeral | CXXMDLXI |
| 121561 in Chinese Numeral | 壹拾萬貳萬壹仟伍佰陸拾壹 |
| 121561 in Egyptian Numeral | 𓆐𓂮𓆼𓍦𓎋𓏺 |
| 121561 in Babylonian Numeral |    |
Roots and stuff for 121561
| Is 121561 a square number? | 121561 is NOT a square number |
| Is 121561 a cube number? | 121561 is NOT a cube number |
| Square root of the number 121561 | 348.65599091368 |
| Cube root of the number 121561 | 49.537196135224 |
Recreational math for 121561
| Number 121561 reversed | 165121 |
| Sum of the digits | 16 |
| No of digits | 6 |