131512551873 has 32 divisors (see below), whose sum is σ = 183870922752. Its totient is φ = 83508230400.

The previous prime is 131512551869. The next prime is 131512551887. The reversal of 131512551873 is 378155215131.

It is not a de Polignac number, because 131512551873 - 2² = 131512551869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131512551823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3898786 + ... + 3932372.

It is an arithmetic number, because the mean of its divisors is an integer number (5745966336).

Almost surely, 2^131512551873 is an apocalyptic number.

It is an amenable number.

131512551873 is a deficient number, since it is larger than the sum of its proper divisors (52358370879).

131512551873 is a wasteful number, since it uses less digits than its factorization.

131512551873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34285.

The product of its digits is 126000, while the sum is 42.

The spelling of 131512551873 in words is "one hundred thirty-one billion, five hundred twelve million, five hundred fifty-one thousand, eight hundred seventy-three".