118031986 has 8 divisors (see below), whose sum is σ = 187462620. Its totient is φ = 55544448.

The previous prime is 118031951. The next prime is 118032023. The reversal of 118031986 is 689130811.

It can be written as a sum of positive squares in 2 ways, for example, as 113955625 + 4076361 = 10675^2 + 2019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735731 + ... + 1735798.

Almost surely, 2^118031986 is an apocalyptic number.

118031986 is a deficient number, since it is larger than the sum of its proper divisors (69430634).

118031986 is a wasteful number, since it uses less digits than its factorization.

118031986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471548.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 118031986 is about 10864.2526664286. The cubic root of 118031986 is about 490.5311275418.

The spelling of 118031986 in words is "one hundred eighteen million, thirty-one thousand, nine hundred eighty-six".