131940662537 has 2 divisors, whose sum is σ = 131940662538. Its totient is φ = 131940662536.

The previous prime is 131940662527. The next prime is 131940662587. The reversal of 131940662537 is 735266049131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85968585616 + 45972076921 = 293204^2 + 214411^2 .

It is a cyclic number.

It is not a de Polignac number, because 131940662537 - 2¹⁴ = 131940646153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131940662491 and 131940662500.

It is not a weakly prime, because it can be changed into another prime (131940662527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65970331268 + 65970331269.

It is an arithmetic number, because the mean of its divisors is an integer number (65970331269).

Almost surely, 2^131940662537 is an apocalyptic number.

It is an amenable number.

131940662537 is a deficient number, since it is larger than the sum of its proper divisors (1).

131940662537 is an equidigital number, since it uses as much as digits as its factorization.

131940662537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 131940662537 in words is "one hundred thirty-one billion, nine hundred forty million, six hundred sixty-two thousand, five hundred thirty-seven".