131708331 has 12 divisors (see below), whose sum is σ = 190625760. Its totient is φ = 87630000.

The previous prime is 131708329. The next prime is 131708347. The reversal of 131708331 is 133807131.

131708331 = 233² + 234² + ... + 741².

It is not a de Polignac number, because 131708331 - 2¹ = 131708329 is a prime.

It is a super-2 number, since 2×131708331² = 34694168909611122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131708295 and 131708304.

It is not an unprimeable number, because it can be changed into a prime (131708321) 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, 9795 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (15885480).

Almost surely, 2^131708331 is an apocalyptic number.

131708331 is a deficient number, since it is larger than the sum of its proper divisors (58917429).

131708331 is a wasteful number, since it uses less digits than its factorization.

131708331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29266 (or 29263 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 131708331 is about 11476.4250095576. The cubic root of 131708331 is about 508.7890415901.

The spelling of 131708331 in words is "one hundred thirty-one million, seven hundred eight thousand, three hundred thirty-one".