132431623 has 4 divisors (see below), whose sum is σ = 132487648. Its totient is φ = 132375600.

The previous prime is 132431609. The next prime is 132431627. The reversal of 132431623 is 326134231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326134231 = 43 ⋅7584517.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132431623 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 (132431627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24303 + ... + 29248.

It is an arithmetic number, because the mean of its divisors is an integer number (33121912).

Almost surely, 2^132431623 is an apocalyptic number.

132431623 is a deficient number, since it is larger than the sum of its proper divisors (56025).

132431623 is an equidigital number, since it uses as much as digits as its factorization.

132431623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56024.

The product of its digits is 2592, while the sum is 25.

The square root of 132431623 is about 11507.8939428551. The cubic root of 132431623 is about 509.7187004411.

Adding to 132431623 its reverse (326134231), we get a palindrome (458565854).

The spelling of 132431623 in words is "one hundred thirty-two million, four hundred thirty-one thousand, six hundred twenty-three".