Names of 1421
| Nominal | 1421 |
| Cardinal | one thousand four hundred twenty-one |
| Ordinal | 1,421st |
| This number as US currency | one thousand four hundred twenty-one dollars |
| Is 1421 an odd number? | 1421 is an odd number |
| Is 1421 an even number? | 1421 is NOT an even number |
| Is 1421 a palindrome? | 1421 is NOT a palindrome number |
| Is 1421 a triangle number? | 1421 is NOT a triangle number |
1421 in other Bases
| Base 2 (Binary) | 101100011012 |
| Base 3 (Ternary) | 12211223 |
| Base 4 (Quaternary) | 1120314 |
| Base 5 (Quinary) | 211415 |
| Base 6 (Senary) | 103256 |
| Base 8 (Octal) | 26158 |
| Base 12 (Duodecimal) | 9A512 |
| Base 16 (Hexadecimal) | 58D16 |
| Base 20 (Vigesimal) | 3B120 |
Primes and Factors tests for 1421
| Is 1421 a Prime Number? | 1421 is NOT a prime |
| Is 1421 a perfect number? | 1421 is NOT a perfect number |
| Is 1421 a Mersenne Prime? | 1421 is NOT a Mersenne prime |
| Is 1421 a Fermat Prime? | 1421 is NOT a Fermat prime |
| Is 1421 a Fibonacci Prime? | 1421 is NOT a Fibonacci prime |
| Is 1421 a Partition Prime? | 1421 is NOT a Partition prime |
| Is 1421 a Pell Prime? | 1421 is NOT a Pell prime |
| Prime Factors | Prime factors of 1421 |
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1421 in other Numerals
| 1421 in Roman Numeral | MCDXXI |
| 1421 in Chinese Numeral | 壹仟肆佰貳拾壹 |
| 1421 in Egyptian Numeral | 𓆼𓍥𓎇𓏺 |
| 1421 in Babylonian Numeral |   |
Roots and stuff for 1421
| Is 1421 a square number? | 1421 is NOT a square number |
| Is 1421 a cube number? | 1421 is NOT a cube number |
| Square root of the number 1421 | 37.696153649942 |
| Cube root of the number 1421 | 11.242546503232 |
Recreational math for 1421
| Number 1421 reversed | 1241 |
| Sum of the digits | 8 |
| No of digits | 4 |