131539379171 has 2 divisors, whose sum is σ = 131539379172. Its totient is φ = 131539379170.

The previous prime is 131539379141. The next prime is 131539379203. The reversal of 131539379171 is 171973935131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131539379171 - 2⁶ = 131539379107 is a prime.

It is not a weakly prime, because it can be changed into another prime (131539379141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65769689585 + 65769689586.

It is an arithmetic number, because the mean of its divisors is an integer number (65769689586).

Almost surely, 2^131539379171 is an apocalyptic number.

131539379171 is a deficient number, since it is larger than the sum of its proper divisors (1).

131539379171 is an equidigital number, since it uses as much as digits as its factorization.

131539379171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 535815, while the sum is 50.

The spelling of 131539379171 in words is "one hundred thirty-one billion, five hundred thirty-nine million, three hundred seventy-nine thousand, one hundred seventy-one".