15231968 has 24 divisors (see below), whose sum is σ = 30092832. Its totient is φ = 7589376.

The previous prime is 15231959. The next prime is 15231991. The reversal of 15231968 is 86913251.

15231968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11096 + ... + 12392.

It is an arithmetic number, because the mean of its divisors is an integer number (1253868).

Almost surely, 2^15231968 is an apocalyptic number.

It is an amenable number.

15231968 is a deficient number, since it is larger than the sum of its proper divisors (14860864).

15231968 is a wasteful number, since it uses less digits than its factorization.

15231968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1666 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 15231968 is about 3902.8153940457. The cubic root of 15231968 is about 247.8860037998.

The spelling of 15231968 in words is "fifteen million, two hundred thirty-one thousand, nine hundred sixty-eight".