131572821875 has 24 divisors (see below), whose sum is σ = 179406048528. Its totient is φ = 95689300000.

The previous prime is 131572821851. The next prime is 131572821883. The reversal of 131572821875 is 578128275131.

It is not a de Polignac number, because 131572821875 - 2²⁰ = 131571773299 is a prime.

It is a super-2 number, since 2×131572821875² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1879412 + ... + 1948161.

It is an arithmetic number, because the mean of its divisors is an integer number (7475252022).

Almost surely, 2^131572821875 is an apocalyptic number.

131572821875 is a deficient number, since it is larger than the sum of its proper divisors (47833226653).

131572821875 is an frugal number, since it uses more digits than its factorization.

131572821875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827609 (or 3827589 counting only the distinct ones).

The product of its digits is 940800, while the sum is 50.

The spelling of 131572821875 in words is "one hundred thirty-one billion, five hundred seventy-two million, eight hundred twenty-one thousand, eight hundred seventy-five".