15135472 has 40 divisors (see below), whose sum is σ = 33390720. Its totient is φ = 6578880.

The previous prime is 15135469. The next prime is 15135481. The reversal of 15135472 is 27453151.

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 15135472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 5917.

It is an arithmetic number, because the mean of its divisors is an integer number (834768).

Almost surely, 2^15135472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15135472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16695360).

15135472 is an abundant number, since it is smaller than the sum of its proper divisors (18255248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15135472 is a wasteful number, since it uses less digits than its factorization.

15135472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781 (or 3775 counting only the distinct ones).

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

The square root of 15135472 is about 3890.4333948803. The cubic root of 15135472 is about 247.3614338468.

The spelling of 15135472 in words is "fifteen million, one hundred thirty-five thousand, four hundred seventy-two".