115157442 has 32 divisors (see below), whose sum is σ = 242968320. Its totient is φ = 36285840.

The previous prime is 115157417. The next prime is 115157477. The reversal of 115157442 is 244751511.

It is a super-2 number, since 2×115157442² = 26522472895966728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72517 + ... + 74087.

It is an arithmetic number, because the mean of its divisors is an integer number (7592760).

Almost surely, 2^115157442 is an apocalyptic number.

115157442 is an abundant number, since it is smaller than the sum of its proper divisors (127810878).

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

115157442 is a wasteful number, since it uses less digits than its factorization.

115157442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its digits is 5600, while the sum is 30.

The square root of 115157442 is about 10731.1435550923. The cubic root of 115157442 is about 486.5162341287.

The spelling of 115157442 in words is "one hundred fifteen million, one hundred fifty-seven thousand, four hundred forty-two".