131039994 has 16 divisors (see below), whose sum is σ = 262213920. Its totient is φ = 43657680.

The previous prime is 131039989. The next prime is 131040023. The reversal of 131039994 is 499930131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10872 + ... + 19500.

It is an arithmetic number, because the mean of its divisors is an integer number (16388370).

Almost surely, 2^131039994 is an apocalyptic number.

131039994 is an abundant number, since it is smaller than the sum of its proper divisors (131173926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131039994 is a wasteful number, since it uses less digits than its factorization.

131039994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 131039994 is about 11447.2701549321. The cubic root of 131039994 is about 507.9269869439.

The spelling of 131039994 in words is "one hundred thirty-one million, thirty-nine thousand, nine hundred ninety-four".