131237174639 has 2 divisors, whose sum is σ = 131237174640. Its totient is φ = 131237174638.

The previous prime is 131237174561. The next prime is 131237174669. The reversal of 131237174639 is 936471732131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131237174639 - 2³⁶ = 62517697903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131237174593 and 131237174602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131237174669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65618587319 + 65618587320.

It is an arithmetic number, because the mean of its divisors is an integer number (65618587320).

Almost surely, 2^131237174639 is an apocalyptic number.

131237174639 is a deficient number, since it is larger than the sum of its proper divisors (1).

131237174639 is an equidigital number, since it uses as much as digits as its factorization.

131237174639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 47.

The spelling of 131237174639 in words is "one hundred thirty-one billion, two hundred thirty-seven million, one hundred seventy-four thousand, six hundred thirty-nine".