131638118 has 32 divisors (see below), whose sum is σ = 213373440. Its totient is φ = 60721920.

The previous prime is 131638081. The next prime is 131638151. The reversal of 131638118 is 811836131.

131638118 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131638118² = 34657188221163848, which contains 22 as substring.

It is a congruent number.

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, 261455 + ... + 261957.

It is an arithmetic number, because the mean of its divisors is an integer number (6667920).

Almost surely, 2^131638118 is an apocalyptic number.

131638118 is a deficient number, since it is larger than the sum of its proper divisors (81735322).

131638118 is a wasteful number, since it uses less digits than its factorization.

131638118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its digits is 3456, while the sum is 32.

The square root of 131638118 is about 11473.3655916649. The cubic root of 131638118 is about 508.6986146227.

The spelling of 131638118 in words is "one hundred thirty-one million, six hundred thirty-eight thousand, one hundred eighteen".