131500791 has 24 divisors (see below), whose sum is σ = 199794816. Its totient is φ = 83229120.

The previous prime is 131500781. The next prime is 131500841. The reversal of 131500791 is 197005131.

It is a happy number.

It is not a de Polignac number, because 131500791 - 2⁹ = 131500279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131500771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10341 + ... + 19233.

It is an arithmetic number, because the mean of its divisors is an integer number (8324784).

Almost surely, 2^131500791 is an apocalyptic number.

131500791 is a deficient number, since it is larger than the sum of its proper divisors (68294025).

131500791 is a wasteful number, since it uses less digits than its factorization.

131500791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8983 (or 8980 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 131500791 is about 11467.3794303668. The cubic root of 131500791 is about 508.5216588843.

The spelling of 131500791 in words is "one hundred thirty-one million, five hundred thousand, seven hundred ninety-one".