115715232 has 72 divisors (see below), whose sum is σ = 333758880. Its totient is φ = 38021760.

The previous prime is 115715213. The next prime is 115715261. The reversal of 115715232 is 232517511.

115715232 is a `hidden beast` number, since 11 + 571 + 52 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 115715196 and 115715205.

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 11 ways as a sum of consecutive naturals, for example, 17619 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (4635540).

Almost surely, 2^115715232 is an apocalyptic number.

115715232 is a gapful number since it is divisible by the number (12) 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 115715232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166879440).

115715232 is an abundant number, since it is smaller than the sum of its proper divisors (218043648).

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

115715232 is a wasteful number, since it uses less digits than its factorization.

115715232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746 (or 5735 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 115715232 is about 10757.1014683324. The cubic root of 115715232 is about 487.3004848266.

The spelling of 115715232 in words is "one hundred fifteen million, seven hundred fifteen thousand, two hundred thirty-two".