115312122 has 24 divisors (see below), whose sum is σ = 264540276. Its totient is φ = 36176256.

The previous prime is 115312117. The next prime is 115312129. The reversal of 115312122 is 221213511.

115312122 is a `hidden beast` number, since 11 + 531 + 2 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 107308881 + 8003241 = 10359^2 + 2829^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 115312095 and 115312104.

It is not an unprimeable number, because it can be changed into a prime (115312129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188113 + ... + 188724.

Almost surely, 2^115312122 is an apocalyptic number.

115312122 is an abundant number, since it is smaller than the sum of its proper divisors (149228154).

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

115312122 is a wasteful number, since it uses less digits than its factorization.

115312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376862 (or 376859 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 115312122 is about 10738.3481969994. The cubic root of 115312122 is about 486.7339669443.

Adding to 115312122 its reverse (221213511), we get a palindrome (336525633).

The spelling of 115312122 in words is "one hundred fifteen million, three hundred twelve thousand, one hundred twenty-two".