131596812287 has 4 divisors (see below), whose sum is σ = 131634970800. Its totient is φ = 131558653776.

The previous prime is 131596812253. The next prime is 131596812293. The reversal of 131596812287 is 782218695131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782218695131 = 569 ⋅1374725299.

It is a cyclic number.

It is not a de Polignac number, because 131596812287 - 2²⁰ = 131595763711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131596412287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19074083 + ... + 19080980.

It is an arithmetic number, because the mean of its divisors is an integer number (32908742700).

Almost surely, 2^131596812287 is an apocalyptic number.

131596812287 is a deficient number, since it is larger than the sum of its proper divisors (38158513).

131596812287 is an equidigital number, since it uses as much as digits as its factorization.

131596812287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38158512.

The product of its digits is 1451520, while the sum is 53.

The spelling of 131596812287 in words is "one hundred thirty-one billion, five hundred ninety-six million, eight hundred twelve thousand, two hundred eighty-seven".