12910925 has 6 divisors (see below), whose sum is σ = 16009578. Its totient is φ = 10328720.

The previous prime is 12910897. The next prime is 12910927. The reversal of 12910925 is 52901921.

It can be written as a sum of positive squares in 3 ways, for example, as 51529 + 12859396 = 227^2 + 3586^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12910925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12910927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258194 + ... + 258243.

It is an arithmetic number, because the mean of its divisors is an integer number (2668263).

Almost surely, 2^12910925 is an apocalyptic number.

It is an amenable number.

12910925 is a deficient number, since it is larger than the sum of its proper divisors (3098653).

12910925 is an equidigital number, since it uses as much as digits as its factorization.

12910925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516447 (or 516442 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 12910925 is about 3593.1775631048. The cubic root of 12910925 is about 234.5951986850.

The spelling of 12910925 in words is "twelve million, nine hundred ten thousand, nine hundred twenty-five".