115315212 has 12 divisors (see below), whose sum is σ = 269068856. Its totient is φ = 38438400.

The previous prime is 115315177. The next prime is 115315231. The reversal of 115315212 is 212513511.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4804789 + ... + 4804812.

Almost surely, 2^115315212 is an apocalyptic number.

115315212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115315212 is an abundant number, since it is smaller than the sum of its proper divisors (153753644).

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

115315212 is a wasteful number, since it uses less digits than its factorization.

115315212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9609608 (or 9609606 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 115315212 is about 10738.4920729123. The cubic root of 115315212 is about 486.7383145488.

Adding to 115315212 its reverse (212513511), we get a palindrome (327828723).

The spelling of 115315212 in words is "one hundred fifteen million, three hundred fifteen thousand, two hundred twelve".