115639264 has 36 divisors (see below), whose sum is σ = 246536136. Its totient is φ = 53369472.

The previous prime is 115639261. The next prime is 115639267. The reversal of 115639264 is 462936511.

It is an interprime number because it is at equal distance from previous prime (115639261) and next prime (115639267).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115639261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5284 + ... + 16099.

It is an arithmetic number, because the mean of its divisors is an integer number (6848226).

Almost surely, 2^115639264 is an apocalyptic number.

It is an amenable number.

115639264 is an abundant number, since it is smaller than the sum of its proper divisors (130896872).

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

115639264 is a wasteful number, since it uses less digits than its factorization.

115639264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21419 (or 21398 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 115639264 is about 10753.5698258764. The cubic root of 115639264 is about 487.1938225584.

The spelling of 115639264 in words is "one hundred fifteen million, six hundred thirty-nine thousand, two hundred sixty-four".