12931125 has 16 divisors (see below), whose sum is σ = 21518016. Its totient is φ = 6896400.

The previous prime is 12931111. The next prime is 12931133. The reversal of 12931125 is 52113921.

It is not a de Polignac number, because 12931125 - 2⁴ = 12931109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12931095 and 12931104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16867 + ... + 17616.

It is an arithmetic number, because the mean of its divisors is an integer number (1344876).

Almost surely, 2^12931125 is an apocalyptic number.

12931125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12931125 is a deficient number, since it is larger than the sum of its proper divisors (8586891).

12931125 is an equidigital number, since it uses as much as digits as its factorization.

12931125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34501 (or 34491 counting only the distinct ones).

The product of its digits is 540, while the sum is 24.

The square root of 12931125 is about 3595.9873470300. The cubic root of 12931125 is about 234.7174815258.

The spelling of 12931125 in words is "twelve million, nine hundred thirty-one thousand, one hundred twenty-five".