132331431 has 4 divisors (see below), whose sum is σ = 176441912. Its totient is φ = 88220952.

The previous prime is 132331421. The next prime is 132331439. The reversal of 132331431 is 134133231.

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

It is not a de Polignac number, because 132331431 - 2²³ = 123942823 is a prime.

It is a super-2 number, since 2×132331431² = 35023215261015522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132331398 and 132331407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132331439) 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, 22055236 + ... + 22055241.

It is an arithmetic number, because the mean of its divisors is an integer number (44110478).

Almost surely, 2^132331431 is an apocalyptic number.

132331431 is a deficient number, since it is larger than the sum of its proper divisors (44110481).

132331431 is an equidigital number, since it uses as much as digits as its factorization.

132331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44110480.

The product of its digits is 648, while the sum is 21.

The square root of 132331431 is about 11503.5399334292. The cubic root of 132331431 is about 509.5901243520.

Adding to 132331431 its reverse (134133231), we get a palindrome (266464662).

The spelling of 132331431 in words is "one hundred thirty-two million, three hundred thirty-one thousand, four hundred thirty-one".