115915424 has 12 divisors (see below), whose sum is σ = 228208554. Its totient is φ = 57957696.

The previous prime is 115915421. The next prime is 115915439. The reversal of 115915424 is 424519511.

It can be written as a sum of positive squares in only one way, i.e., 115175824 + 739600 = 10732^2 + 860^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 3622357 = 115915424 / (1 + 1 + 5 + 9 + 1 + 5 + 4 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (115915421) by changing a digit.

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 as a sum of consecutive naturals, namely, 1811147 + ... + 1811210.

Almost surely, 2^115915424 is an apocalyptic number.

It is an amenable number.

115915424 is a deficient number, since it is larger than the sum of its proper divisors (112293130).

115915424 is an equidigital number, since it uses as much as digits as its factorization.

115915424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622367 (or 3622359 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 115915424 is about 10766.4025561002. The cubic root of 115915424 is about 487.5813393973.

The spelling of 115915424 in words is "one hundred fifteen million, nine hundred fifteen thousand, four hundred twenty-four".