131533141503493 has 4 divisors (see below), whose sum is σ = 131764306954860. Its totient is φ = 131301976052128.

The previous prime is 131533141503487. The next prime is 131533141503563. The reversal of 131533141503493 is 394305141335131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23572355288769 + 107960786214724 = 4855137^2 + 10390418^2 .

It is a cyclic number.

It is not a de Polignac number, because 131533141503493 - 2¹⁷ = 131533141372421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131533141503193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115582724830 + ... + 115582725967.

It is an arithmetic number, because the mean of its divisors is an integer number (32941076738715).

Almost surely, 2^{131533141503493} is an apocalyptic number.

It is an amenable number.

131533141503493 is a deficient number, since it is larger than the sum of its proper divisors (231165451367).

131533141503493 is an equidigital number, since it uses as much as digits as its factorization.

131533141503493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231165451366.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 131533141503493 in words is "one hundred thirty-one trillion, five hundred thirty-three billion, one hundred forty-one million, five hundred three thousand, four hundred ninety-three".