12925128 has 32 divisors (see below), whose sum is σ = 32556960. Its totient is φ = 4275840.

The previous prime is 12925093. The next prime is 12925139. The reversal of 12925128 is 82152921.

It is a junction number, because it is equal to n+sod(n) for n = 12925095 and 12925104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323 + ... + 5253.

It is an arithmetic number, because the mean of its divisors is an integer number (1017405).

Almost surely, 2^12925128 is an apocalyptic number.

It is an amenable number.

12925128 is an abundant number, since it is smaller than the sum of its proper divisors (19631832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12925128 is a wasteful number, since it uses less digits than its factorization.

12925128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077 (or 4073 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 12925128 is about 3595.1534042374. The cubic root of 12925128 is about 234.6811913502.

The spelling of 12925128 in words is "twelve million, nine hundred twenty-five thousand, one hundred twenty-eight".