115242642 has 32 divisors (see below), whose sum is σ = 263020800. Its totient is φ = 37375344.

The previous prime is 115242601. The next prime is 115242649. The reversal of 115242642 is 246242511.

115242642 is a `hidden beast` number, since 1 + 15 + 2 + 4 + 2 + 642 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115242649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26842 + ... + 30837.

It is an arithmetic number, because the mean of its divisors is an integer number (8219400).

Almost surely, 2^115242642 is an apocalyptic number.

115242642 is an abundant number, since it is smaller than the sum of its proper divisors (147778158).

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

115242642 is a wasteful number, since it uses less digits than its factorization.

115242642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57727 (or 57721 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 115242642 is about 10735.1125750967. The cubic root of 115242642 is about 486.6361886420.

The spelling of 115242642 in words is "one hundred fifteen million, two hundred forty-two thousand, six hundred forty-two".