131376775531 has 32 divisors (see below), whose sum is σ = 146527027200. Its totient is φ = 117410912640.

The previous prime is 131376775501. The next prime is 131376775549. The reversal of 131376775531 is 135577673131.

It is a happy number.

It is not a de Polignac number, because 131376775531 - 2⁵ = 131376775499 is a prime.

It is a super-2 number, since 2×131376775531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131376775501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1929046 + ... + 1995988.

It is an arithmetic number, because the mean of its divisors is an integer number (4578969600).

Almost surely, 2^131376775531 is an apocalyptic number.

131376775531 is a deficient number, since it is larger than the sum of its proper divisors (15150251669).

131376775531 is a wasteful number, since it uses less digits than its factorization.

131376775531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67099.

The product of its digits is 1389150, while the sum is 49.

The spelling of 131376775531 in words is "one hundred thirty-one billion, three hundred seventy-six million, seven hundred seventy-five thousand, five hundred thirty-one".