115299864 has 48 divisors (see below), whose sum is σ = 312764400. Its totient is φ = 38372544.

The previous prime is 115299859. The next prime is 115299869. The reversal of 115299864 is 468992511.

It is an interprime number because it is at equal distance from previous prime (115299859) and next prime (115299869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115299869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87837 + ... + 89139.

It is an arithmetic number, because the mean of its divisors is an integer number (6515925).

Almost surely, 2^115299864 is an apocalyptic number.

It is an amenable number.

115299864 is an abundant number, since it is smaller than the sum of its proper divisors (197464536).

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

115299864 is a wasteful number, since it uses less digits than its factorization.

115299864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544 (or 2537 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 115299864 is about 10737.7774236571. Note that the first 3 decimals coincide. The cubic root of 115299864 is about 486.7167192739.

The spelling of 115299864 in words is "one hundred fifteen million, two hundred ninety-nine thousand, eight hundred sixty-four".