Compare 1225 vs 1237
| Property | 1225 | 1237 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 2 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 52 × 72 | 12371 |
| Prime factorization | 5 × 5 × 7 × 7 | 1237 |
| Divisors count | 9 | 2 |
| Divisors | 1, 5, 7, 25, 35, 49, 175, 245, 1225 | 1, 1237 |
| Number of properties | 0 | 7 |
| Additive primes | 109th | |
| Emirps | 57th | |
| Harmonic primes | 71st | |
| Isolated primes | 120th | |
| Primes | 203rd | |
| Pythagorean primes | 100th | |
| Sexy primes (2nd member) | 88th | |
| Roman numberals | MCCXXV | MCCXXXVII |
| Base 2 | 100110010012 | 100110101012 |
| Base 3 | 12001013 | 12002113 |
| Base 4 | 1030214 | 1031114 |
| Base 5 | 144005 | 144225 |
| Base 6 | 54016 | 54216 |
| Base 7 | 34007 | 34157 |
| Base 8 | 23118 | 23258 |
| Base 9 | 16119 | 16249 |
| Base 10 | 122510 | 123710 |
| Base 11 | a1411 | a2511 |
| Base 12 | 86112 | 87112 |
| Base 13 | 73313 | 74213 |
| Base 14 | 63714 | 64514 |
| Base 15 | 56a15 | 57715 |
| Base 16 | 4c916 | 4d516 |