131357957 has 2 divisors, whose sum is σ = 131357958. Its totient is φ = 131357956.

The previous prime is 131357921. The next prime is 131357969. The reversal of 131357957 is 759753131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105966436 + 25391521 = 10294^2 + 5039^2 .

It is an emirp because it is prime and its reverse (759753131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131357957 - 2⁸ = 131357701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131357977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65678978 + 65678979.

It is an arithmetic number, because the mean of its divisors is an integer number (65678979).

Almost surely, 2^131357957 is an apocalyptic number.

It is an amenable number.

131357957 is a deficient number, since it is larger than the sum of its proper divisors (1).

131357957 is an equidigital number, since it uses as much as digits as its factorization.

131357957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99225, while the sum is 41.

The square root of 131357957 is about 11461.1498986795. The cubic root of 131357957 is about 508.3374762241.

The spelling of 131357957 in words is "one hundred thirty-one million, three hundred fifty-seven thousand, nine hundred fifty-seven".