131445540671 has 2 divisors, whose sum is σ = 131445540672. Its totient is φ = 131445540670.

The previous prime is 131445540613. The next prime is 131445540683. The reversal of 131445540671 is 176045544131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131445540671 - 2⁶ = 131445540607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131445540271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65722770335 + 65722770336.

It is an arithmetic number, because the mean of its divisors is an integer number (65722770336).

Almost surely, 2^131445540671 is an apocalyptic number.

131445540671 is a deficient number, since it is larger than the sum of its proper divisors (1).

131445540671 is an equidigital number, since it uses as much as digits as its factorization.

131445540671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 131445540671 in words is "one hundred thirty-one billion, four hundred forty-five million, five hundred forty thousand, six hundred seventy-one".