115915536 has 200 divisors, whose sum is σ = 375940224. Its totient is φ = 34179840.

The previous prime is 115915529. The next prime is 115915577. The reversal of 115915536 is 635519511.

115915536 is a `hidden beast` number, since 1 + 15 + 91 + 553 + 6 = 666.

It is a super-2 number, since 2×115915536² = 26872822972334592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 115915536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 669946 + ... + 670118.

Almost surely, 2^115915536 is an apocalyptic number.

115915536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115915536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187970112).

115915536 is an abundant number, since it is smaller than the sum of its proper divisors (260024688).

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

115915536 is a wasteful number, since it uses less digits than its factorization.

115915536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 236 counting only the distinct ones).

The product of its digits is 20250, while the sum is 36.

The square root of 115915536 is about 10766.4077574649. The cubic root of 115915536 is about 487.5814964345.

The spelling of 115915536 in words is "one hundred fifteen million, nine hundred fifteen thousand, five hundred thirty-six".