131766238 has 8 divisors (see below), whose sum is σ = 197987832. Its totient is φ = 65770296.

The previous prime is 131766203. The next prime is 131766253. The reversal of 131766238 is 832667131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131766197 and 131766206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54945 + ... + 57292.

It is an arithmetic number, because the mean of its divisors is an integer number (24748479).

Almost surely, 2^131766238 is an apocalyptic number.

131766238 is a deficient number, since it is larger than the sum of its proper divisors (66221594).

131766238 is a wasteful number, since it uses less digits than its factorization.

131766238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112826.

The product of its digits is 36288, while the sum is 37.

The square root of 131766238 is about 11478.9475998456. The cubic root of 131766238 is about 508.8635955434.

The spelling of 131766238 in words is "one hundred thirty-one million, seven hundred sixty-six thousand, two hundred thirty-eight".