15315472 has 20 divisors (see below), whose sum is σ = 29904336. Its totient is φ = 7598240.

The previous prime is 15315431. The next prime is 15315479. The reversal of 15315472 is 27451351.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15315472.

It is not an unprimeable number, because it can be changed into a prime (15315479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1558 + ... + 5749.

Almost surely, 2^15315472 is an apocalyptic number.

It is an amenable number.

15315472 is a deficient number, since it is larger than the sum of its proper divisors (14588864).

15315472 is a wasteful number, since it uses less digits than its factorization.

15315472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7446 (or 7440 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 15315472 is about 3913.4986904303. The cubic root of 15315472 is about 248.3381616506.

It can be divided in two parts, 153 and 15472, that added together give a 6-th power (15625 = 5⁶).

The spelling of 15315472 in words is "fifteen million, three hundred fifteen thousand, four hundred seventy-two".