15135564 has 96 divisors (see below), whose sum is σ = 39997440. Its totient is φ = 4435200.

The previous prime is 15135563. The next prime is 15135599. The reversal of 15135564 is 46553151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15135563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248094 + ... + 248154.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^15135564 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 15135564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19998720).

15135564 is an abundant number, since it is smaller than the sum of its proper divisors (24861876).

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

15135564 is a wasteful number, since it uses less digits than its factorization.

15135564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 149 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 15135564 is about 3890.4452187378. The cubic root of 15135564 is about 247.3619350360.

The spelling of 15135564 in words is "fifteen million, one hundred thirty-five thousand, five hundred sixty-four".