15115264 has 44 divisors (see below), whose sum is σ = 31319100. Its totient is φ = 7282688.

The previous prime is 15115253. The next prime is 15115273. The reversal of 15115264 is 46251151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10240000 + 4875264 = 3200^2 + 2208^2 .

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, 29442 + ... + 29950.

Almost surely, 2^15115264 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 15115264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15659550).

15115264 is an abundant number, since it is smaller than the sum of its proper divisors (16203836).

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

15115264 is an equidigital number, since it uses as much as digits as its factorization.

15115264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 540 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 15115264 is about 3887.8353874618. The cubic root of 15115264 is about 247.2512972935.

The spelling of 15115264 in words is "fifteen million, one hundred fifteen thousand, two hundred sixty-four".