131274867485 has 12 divisors (see below), whose sum is σ = 161278534332. Its totient is φ = 102577563648.

The previous prime is 131274867439. The next prime is 131274867509. The reversal of 131274867485 is 584768472131.

It can be written as a sum of positive squares in 2 ways, for example, as 47004841636 + 84270025849 = 216806^2 + 290293^2 .

It is not a de Polignac number, because 131274867485 - 2²⁰ = 131273818909 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131274867485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7090532 + ... + 7109021.

It is an arithmetic number, because the mean of its divisors is an integer number (13439877861).

Almost surely, 2^131274867485 is an apocalyptic number.

It is an amenable number.

131274867485 is a deficient number, since it is larger than the sum of its proper divisors (30003666847).

131274867485 is an equidigital number, since it uses as much as digits as its factorization.

131274867485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14199644 (or 14199601 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 56.

The spelling of 131274867485 in words is "one hundred thirty-one billion, two hundred seventy-four million, eight hundred sixty-seven thousand, four hundred eighty-five".