131986994 has 8 divisors (see below), whose sum is σ = 198177840. Its totient is φ = 65927716.

The previous prime is 131986957. The next prime is 131987003. The reversal of 131986994 is 499689131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30344 + ... + 34419.

It is an arithmetic number, because the mean of its divisors is an integer number (24772230).

Almost surely, 2^131986994 is an apocalyptic number.

131986994 is a deficient number, since it is larger than the sum of its proper divisors (66190846).

131986994 is a wasteful number, since it uses less digits than its factorization.

131986994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65784.

The product of its digits is 419904, while the sum is 50.

The square root of 131986994 is about 11488.5592656347. The cubic root of 131986994 is about 509.1476137112.

The spelling of 131986994 in words is "one hundred thirty-one million, nine hundred eighty-six thousand, nine hundred ninety-four".