131544180731 has 8 divisors (see below), whose sum is σ = 132866737344. Its totient is φ = 130222019200.

The previous prime is 131544180721. The next prime is 131544180743. The reversal of 131544180731 is 137081445131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131544180731 - 2¹⁴ = 131544164347 is a prime.

It is a super-2 number, since 2×131544180731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131544180721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594830 + ... + 785436.

It is an arithmetic number, because the mean of its divisors is an integer number (16608342168).

Almost surely, 2^131544180731 is an apocalyptic number.

131544180731 is a deficient number, since it is larger than the sum of its proper divisors (1322556613).

131544180731 is a wasteful number, since it uses less digits than its factorization.

131544180731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197541.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 131544180731 in words is "one hundred thirty-one billion, five hundred forty-four million, one hundred eighty thousand, seven hundred thirty-one".