131324893 has 4 divisors (see below), whose sum is σ = 150085600. Its totient is φ = 112564188.

The previous prime is 131324863. The next prime is 131324899. The reversal of 131324893 is 398423131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 398423131 = 229 ⋅1739839.

It is a cyclic number.

It is not a de Polignac number, because 131324893 - 2⁹ = 131324381 is a prime.

It is a super-2 number, since 2×131324893² = 34492455042922898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131324899) 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, 9380343 + ... + 9380356.

It is an arithmetic number, because the mean of its divisors is an integer number (37521400).

Almost surely, 2^131324893 is an apocalyptic number.

It is an amenable number.

131324893 is a deficient number, since it is larger than the sum of its proper divisors (18760707).

131324893 is an equidigital number, since it uses as much as digits as its factorization.

131324893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760706.

The product of its digits is 15552, while the sum is 34.

The square root of 131324893 is about 11459.7073697368. The cubic root of 131324893 is about 508.2948215800.

The spelling of 131324893 in words is "one hundred thirty-one million, three hundred twenty-four thousand, eight hundred ninety-three".