Names of 345
| Nominal | 345 |
| Cardinal | three hundred forty-five |
| Ordinal | 345th |
| This number as US currency | three hundred forty-five dollars |
| Is 345 an odd number? | 345 is an odd number |
| Is 345 an even number? | 345 is NOT an even number |
| Is 345 a palindrome? | 345 is NOT a palindrome number |
| Is 345 a triangle number? | 345 is NOT a triangle number |
345 in other Bases
| Base 2 (Binary) | 1010110012 |
| Base 3 (Ternary) | 1102103 |
| Base 4 (Quaternary) | 111214 |
| Base 5 (Quinary) | 23405 |
| Base 6 (Senary) | 13336 |
| Base 8 (Octal) | 5318 |
| Base 12 (Duodecimal) | 24912 |
| Base 16 (Hexadecimal) | 15916 |
| Base 20 (Vigesimal) | H520 |
Primes and Factors tests for 345
| Is 345 a Prime Number? | 345 is NOT a prime |
| Is 345 a perfect number? | 345 is NOT a perfect number |
| Is 345 a Mersenne Prime? | 345 is NOT a Mersenne prime |
| Is 345 a Fermat Prime? | 345 is NOT a Fermat prime |
| Is 345 a Fibonacci Prime? | 345 is NOT a Fibonacci prime |
| Is 345 a Partition Prime? | 345 is NOT a Partition prime |
| Is 345 a Pell Prime? | 345 is NOT a Pell prime |
| Prime Factors | Prime factors of 345 |
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345 in other Numerals
| 345 in Roman Numeral | CCCXLV |
| 345 in Chinese Numeral | 叄佰肆拾伍 |
| 345 in Egyptian Numeral | 𓍤𓎉𓏾 |
| 345 in Babylonian Numeral |   |
Roots and stuff for 345
| Is 345 a square number? | 345 is NOT a square number |
| Is 345 a cube number? | 345 is NOT a cube number |
| Square root of the number 345 | 18.574175621007 |
| Cube root of the number 345 | 7.0135790834997 |
Recreational math for 345
| Number 345 reversed | 543 |
| Sum of the digits | 12 |
| No of digits | 3 |