115212320 has 48 divisors (see below), whose sum is σ = 272885760. Its totient is φ = 45967104.

The previous prime is 115212299. The next prime is 115212341. The reversal of 115212320 is 23212511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115212299) and next prime (115212341).

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, 89441 + ... + 90719.

It is an arithmetic number, because the mean of its divisors is an integer number (5685120).

Almost surely, 2^115212320 is an apocalyptic number.

115212320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115212320 is an abundant number, since it is smaller than the sum of its proper divisors (157673440).

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

115212320 is a wasteful number, since it uses less digits than its factorization.

115212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 115212320 is about 10733.7002007695. The cubic root of 115212320 is about 486.5935045666.

Adding to 115212320 its reverse (23212511), we get a palindrome (138424831).

The spelling of 115212320 in words is "one hundred fifteen million, two hundred twelve thousand, three hundred twenty".