12870925 has 24 divisors (see below), whose sum is σ = 16952040. Its totient is φ = 9676800.

The previous prime is 12870919. The next prime is 12870941. The reversal of 12870925 is 52907821.

It can be written as a sum of positive squares in 12 ways, for example, as 9418761 + 3452164 = 3069^2 + 1858^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12870925 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29509 + ... + 29941.

It is an arithmetic number, because the mean of its divisors is an integer number (706335).

Almost surely, 2^12870925 is an apocalyptic number.

It is an amenable number.

12870925 is a deficient number, since it is larger than the sum of its proper divisors (4081115).

12870925 is a wasteful number, since it uses less digits than its factorization.

12870925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 12870925 is about 3587.6071412572. The cubic root of 12870925 is about 234.3526775777.

The spelling of 12870925 in words is "twelve million, eight hundred seventy thousand, nine hundred twenty-five".