115957242 has 24 divisors (see below), whose sum is σ = 251567316. Its totient is φ = 38602176.

The previous prime is 115957213. The next prime is 115957249. The reversal of 115957242 is 242759511.

It can be written as a sum of positive squares in 2 ways, for example, as 87216921 + 28740321 = 9339^2 + 5361^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115957197 and 115957206.

It is not an unprimeable number, because it can be changed into a prime (115957249) 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, 11668 + ... + 19184.

Almost surely, 2^115957242 is an apocalyptic number.

115957242 is an abundant number, since it is smaller than the sum of its proper divisors (135610074).

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

115957242 is a wasteful number, since it uses less digits than its factorization.

115957242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382 (or 8379 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 115957242 is about 10768.3444409993. The cubic root of 115957242 is about 487.6399661221.

The spelling of 115957242 in words is "one hundred fifteen million, nine hundred fifty-seven thousand, two hundred forty-two".