118311642 has 24 divisors (see below), whose sum is σ = 257228244. Its totient is φ = 39300864.

The previous prime is 118311629. The next prime is 118311659. The reversal of 118311642 is 246113811.

It is a happy number.

118311642 is a `hidden beast` number, since 1 + 1 + 8 + 3 + 11 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89699841 + 28611801 = 9471^2 + 5349^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5943 + ... + 16490.

Almost surely, 2^118311642 is an apocalyptic number.

118311642 is an abundant number, since it is smaller than the sum of its proper divisors (138916602).

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

118311642 is a wasteful number, since it uses less digits than its factorization.

118311642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22734 (or 22731 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 118311642 is about 10877.1155183716. The cubic root of 118311642 is about 490.9182310120.

The spelling of 118311642 in words is "one hundred eighteen million, three hundred eleven thousand, six hundred forty-two".