131158697 has 2 divisors, whose sum is σ = 131158698. Its totient is φ = 131158696.

The previous prime is 131158667. The next prime is 131158721. The reversal of 131158697 is 796851131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 55190041 = 8716^2 + 7429^2 .

It is a cyclic number.

It is not a de Polignac number, because 131158697 - 2⁸ = 131158441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131158637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65579348 + 65579349.

It is an arithmetic number, because the mean of its divisors is an integer number (65579349).

Almost surely, 2^131158697 is an apocalyptic number.

It is an amenable number.

131158697 is a deficient number, since it is larger than the sum of its proper divisors (1).

131158697 is an equidigital number, since it uses as much as digits as its factorization.

131158697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 41.

The square root of 131158697 is about 11452.4537545454. The cubic root of 131158697 is about 508.0803097555.

It can be divided in two parts, 13115 and 8697, that added together give a palindrome (21812).

The spelling of 131158697 in words is "one hundred thirty-one million, one hundred fifty-eight thousand, six hundred ninety-seven".