131943912815 has 32 divisors (see below), whose sum is σ = 190550187072. Its totient is φ = 86417280000.

The previous prime is 131943912791. The next prime is 131943912847. The reversal of 131943912815 is 518219349131.

It is a happy number.

It is not a de Polignac number, because 131943912815 - 2¹⁶ = 131943847279 is a prime.

It is a super-2 number, since 2×131943912815² (a number of 23 digits) contains 22 as substring.

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 131943912815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2221136 + ... + 2279765.

It is an arithmetic number, because the mean of its divisors is an integer number (5954693346).

Almost surely, 2^131943912815 is an apocalyptic number.

131943912815 is a deficient number, since it is larger than the sum of its proper divisors (58606274257).

131943912815 is a wasteful number, since it uses less digits than its factorization.

131943912815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500971.

The product of its digits is 233280, while the sum is 47.

The spelling of 131943912815 in words is "one hundred thirty-one billion, nine hundred forty-three million, nine hundred twelve thousand, eight hundred fifteen".