115611564 has 24 divisors (see below), whose sum is σ = 269936128. Its totient is φ = 38512080.

The previous prime is 115611553. The next prime is 115611583. The reversal of 115611564 is 465116511.

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, 30249 + ... + 33855.

Almost surely, 2^115611564 is an apocalyptic number.

It is an amenable number.

115611564 is an abundant number, since it is smaller than the sum of its proper divisors (154324564).

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

115611564 is a wasteful number, since it uses less digits than its factorization.

115611564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285 (or 6283 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 115611564 is about 10752.2818043427. The cubic root of 115611564 is about 487.1549189712.

It can be divided in two parts, 1156 and 11564, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 115611564 in words is "one hundred fifteen million, six hundred eleven thousand, five hundred sixty-four".