131660158 has 24 divisors (see below), whose sum is σ = 241828200. Its totient is φ = 53455248.

The previous prime is 131660147. The next prime is 131660209. The reversal of 131660158 is 851066131.

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 11 ways as a sum of consecutive naturals, for example, 33493 + ... + 37216.

It is an arithmetic number, because the mean of its divisors is an integer number (10076175).

Almost surely, 2^131660158 is an apocalyptic number.

131660158 is a deficient number, since it is larger than the sum of its proper divisors (110168042).

131660158 is a wasteful number, since it uses less digits than its factorization.

131660158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70744 (or 70737 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 131660158 is about 11474.3260368529. The cubic root of 131660158 is about 508.7270032889.

The spelling of 131660158 in words is "one hundred thirty-one million, six hundred sixty thousand, one hundred fifty-eight".