131913658 has 16 divisors (see below), whose sum is σ = 203968800. Its totient is φ = 63937296.

The previous prime is 131913623. The next prime is 131913667. The reversal of 131913658 is 856319131.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 7 ways as a sum of consecutive naturals, for example, 17793 + ... + 24091.

It is an arithmetic number, because the mean of its divisors is an integer number (12748050).

Almost surely, 2^131913658 is an apocalyptic number.

131913658 is a deficient number, since it is larger than the sum of its proper divisors (72055142).

131913658 is a wasteful number, since it uses less digits than its factorization.

131913658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6621.

The product of its digits is 19440, while the sum is 37.

The square root of 131913658 is about 11485.3671251728. The cubic root of 131913658 is about 509.0532969256.

The spelling of 131913658 in words is "one hundred thirty-one million, nine hundred thirteen thousand, six hundred fifty-eight".