131531345504 has 96 divisors (see below), whose sum is σ = 281692059264. Its totient is φ = 60094218240.

The previous prime is 131531345497. The next prime is 131531345513. The reversal of 131531345504 is 405543135131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57865712 + ... + 57867984.

It is an arithmetic number, because the mean of its divisors is an integer number (2934292284).

Almost surely, 2^131531345504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131531345504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140846029632).

131531345504 is an abundant number, since it is smaller than the sum of its proper divisors (150160713760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131531345504 is a wasteful number, since it uses less digits than its factorization.

131531345504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3632 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 131531345504 in words is "one hundred thirty-one billion, five hundred thirty-one million, three hundred forty-five thousand, five hundred four".