131653456631 has 2 divisors, whose sum is σ = 131653456632. Its totient is φ = 131653456630.

The previous prime is 131653456619. The next prime is 131653456667. The reversal of 131653456631 is 136654356131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131653456631 - 2¹⁸ = 131653194487 is a prime.

It is a super-2 number, since 2×131653456631² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131653456691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65826728315 + 65826728316.

It is an arithmetic number, because the mean of its divisors is an integer number (65826728316).

Almost surely, 2^131653456631 is an apocalyptic number.

131653456631 is a deficient number, since it is larger than the sum of its proper divisors (1).

131653456631 is an equidigital number, since it uses as much as digits as its factorization.

131653456631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 44.

The spelling of 131653456631 in words is "one hundred thirty-one billion, six hundred fifty-three million, four hundred fifty-six thousand, six hundred thirty-one".