12315904 has 18 divisors (see below), whose sum is σ = 24584210. Its totient is φ = 6157824.

The previous prime is 12315883. The next prime is 12315929. The reversal of 12315904 is 40951321.

12315904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10758400 + 1557504 = 3280^2 + 1248^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23799 + ... + 24310.

Almost surely, 2^12315904 is an apocalyptic number.

It is an amenable number.

12315904 is a deficient number, since it is larger than the sum of its proper divisors (12268306).

12315904 is an frugal number, since it uses more digits than its factorization.

12315904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48125 (or 48111 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12315904 is about 3509.4022283004. The cubic root of 12315904 is about 230.9344716464.

The spelling of 12315904 in words is "twelve million, three hundred fifteen thousand, nine hundred four".