131507664427 has 2 divisors, whose sum is σ = 131507664428. Its totient is φ = 131507664426.

The previous prime is 131507664391. The next prime is 131507664487. The reversal of 131507664427 is 724466705131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131507664427 - 2³¹ = 129360180779 is a prime.

It is not a weakly prime, because it can be changed into another prime (131507664487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65753832213 + 65753832214.

It is an arithmetic number, because the mean of its divisors is an integer number (65753832214).

Almost surely, 2^131507664427 is an apocalyptic number.

131507664427 is a deficient number, since it is larger than the sum of its proper divisors (1).

131507664427 is an equidigital number, since it uses as much as digits as its factorization.

131507664427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 131507664427 in words is "one hundred thirty-one billion, five hundred seven million, six hundred sixty-four thousand, four hundred twenty-seven".