131152493 has 4 divisors (see below), whose sum is σ = 131188320. Its totient is φ = 131116668.

The previous prime is 131152453. The next prime is 131152499. The reversal of 131152493 is 394251131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131152493 - 2²⁰ = 130103917 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 (131152499) 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, 11705 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (32797080).

Almost surely, 2^131152493 is an apocalyptic number.

It is an amenable number.

131152493 is a deficient number, since it is larger than the sum of its proper divisors (35827).

131152493 is an equidigital number, since it uses as much as digits as its factorization.

131152493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35826.

The product of its digits is 3240, while the sum is 29.

The square root of 131152493 is about 11452.1828923572. The cubic root of 131152493 is about 508.0722986462.

The spelling of 131152493 in words is "one hundred thirty-one million, one hundred fifty-two thousand, four hundred ninety-three".