131324134639 has 2 divisors, whose sum is σ = 131324134640. Its totient is φ = 131324134638.

The previous prime is 131324134607. The next prime is 131324134661. The reversal of 131324134639 is 936431423131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131324134639 - 2⁵ = 131324134607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131324134699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65662067319 + 65662067320.

It is an arithmetic number, because the mean of its divisors is an integer number (65662067320).

Almost surely, 2^131324134639 is an apocalyptic number.

131324134639 is a deficient number, since it is larger than the sum of its proper divisors (1).

131324134639 is an equidigital number, since it uses as much as digits as its factorization.

131324134639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 40.

The spelling of 131324134639 in words is "one hundred thirty-one billion, three hundred twenty-four million, one hundred thirty-four thousand, six hundred thirty-nine".