115128384 has 56 divisors (see below), whose sum is σ = 348130368. Its totient is φ = 32893440.

The previous prime is 115128371. The next prime is 115128401. The reversal of 115128384 is 483821511.

It is a tau number, because it is divible by the number of its divisors (56).

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, 41487 + ... + 44174.

Almost surely, 2^115128384 is an apocalyptic number.

115128384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

115128384 is an abundant number, since it is smaller than the sum of its proper divisors (233001984).

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

115128384 is an equidigital number, since it uses as much as digits as its factorization.

115128384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85683 (or 85673 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 115128384 is about 10729.7895599122. The cubic root of 115128384 is about 486.4753093515.

Adding to 115128384 its reverse (483821511), we get a palindrome (598949895).

The spelling of 115128384 in words is "one hundred fifteen million, one hundred twenty-eight thousand, three hundred eighty-four".