118559988 has 36 divisors (see below), whose sum is σ = 307796580. Its totient is φ = 38451456.

The previous prime is 118559983. The next prime is 118559999. The reversal of 118559988 is 889955811.

118559988 is a `hidden beast` number, since 1 + 1 + 8 + 559 + 9 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89529444 + 29030544 = 9462^2 + 5388^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118559983) 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, 43173 + ... + 45836.

It is an arithmetic number, because the mean of its divisors is an integer number (8549905).

Almost surely, 2^118559988 is an apocalyptic number.

118559988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

118559988 is an abundant number, since it is smaller than the sum of its proper divisors (189236592).

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

118559988 is a wasteful number, since it uses less digits than its factorization.

118559988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89056 (or 89051 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 54.

The square root of 118559988 is about 10888.5255200142. The cubic root of 118559988 is about 491.2614837166.

The spelling of 118559988 in words is "one hundred eighteen million, five hundred fifty-nine thousand, nine hundred eighty-eight".