131465761957 has 2 divisors, whose sum is σ = 131465761958. Its totient is φ = 131465761956.

The previous prime is 131465761949. The next prime is 131465762083. The reversal of 131465761957 is 759167564131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106410354436 + 25055407521 = 326206^2 + 158289^2 .

It is a cyclic number.

It is not a de Polignac number, because 131465761957 - 2³ = 131465761949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131465761898 and 131465761907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131465762957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65732880978 + 65732880979.

It is an arithmetic number, because the mean of its divisors is an integer number (65732880979).

Almost surely, 2^131465761957 is an apocalyptic number.

It is an amenable number.

131465761957 is a deficient number, since it is larger than the sum of its proper divisors (1).

131465761957 is an equidigital number, since it uses as much as digits as its factorization.

131465761957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4762800, while the sum is 55.

The spelling of 131465761957 in words is "one hundred thirty-one billion, four hundred sixty-five million, seven hundred sixty-one thousand, nine hundred fifty-seven".