131579510521 has 2 divisors, whose sum is σ = 131579510522. Its totient is φ = 131579510520.

The previous prime is 131579510393. The next prime is 131579510527. The reversal of 131579510521 is 125015975131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127320512400 + 4258998121 = 356820^2 + 65261^2 .

It is a cyclic number.

It is not a de Polignac number, because 131579510521 - 2⁷ = 131579510393 is a prime.

It is not a weakly prime, because it can be changed into another prime (131579510527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65789755260 + 65789755261.

It is an arithmetic number, because the mean of its divisors is an integer number (65789755261).

Almost surely, 2^131579510521 is an apocalyptic number.

It is an amenable number.

131579510521 is a deficient number, since it is larger than the sum of its proper divisors (1).

131579510521 is an equidigital number, since it uses as much as digits as its factorization.

131579510521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250, while the sum is 40.

The spelling of 131579510521 in words is "one hundred thirty-one billion, five hundred seventy-nine million, five hundred ten thousand, five hundred twenty-one".