131371697 has 2 divisors, whose sum is σ = 131371698. Its totient is φ = 131371696.

The previous prime is 131371651. The next prime is 131371703. The reversal of 131371697 is 796173131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102738496 + 28633201 = 10136^2 + 5351^2 .

It is a cyclic number.

It is not a de Polignac number, because 131371697 - 2²⁰ = 130323121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131371697.

It is not a weakly prime, because it can be changed into another prime (131371297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65685848 + 65685849.

It is an arithmetic number, because the mean of its divisors is an integer number (65685849).

Almost surely, 2^131371697 is an apocalyptic number.

It is an amenable number.

131371697 is a deficient number, since it is larger than the sum of its proper divisors (1).

131371697 is an equidigital number, since it uses as much as digits as its factorization.

131371697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814, while the sum is 38.

The square root of 131371697 is about 11461.7492992998. The cubic root of 131371697 is about 508.3551995849.

The spelling of 131371697 in words is "one hundred thirty-one million, three hundred seventy-one thousand, six hundred ninety-seven".