131371499 has 12 divisors (see below), whose sum is σ = 153014904. Its totient is φ = 112460544.

The previous prime is 131371489. The next prime is 131371507. The reversal of 131371499 is 994173131.

It is not a de Polignac number, because 131371499 - 2²⁰ = 130322923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131371489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58532 + ... + 60734.

It is an arithmetic number, because the mean of its divisors is an integer number (12751242).

Almost surely, 2^131371499 is an apocalyptic number.

131371499 is a deficient number, since it is larger than the sum of its proper divisors (21643405).

131371499 is a wasteful number, since it uses less digits than its factorization.

131371499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434 (or 3427 counting only the distinct ones).

The product of its digits is 20412, while the sum is 38.

The square root of 131371499 is about 11461.7406618716. The cubic root of 131371499 is about 508.3549441916.

The spelling of 131371499 in words is "one hundred thirty-one million, three hundred seventy-one thousand, four hundred ninety-nine".