132142321 has 4 divisors (see below), whose sum is σ = 139097200. Its totient is φ = 125187444.

The previous prime is 132142319. The next prime is 132142327. The reversal of 132142321 is 123241231.

It is a happy number.

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: 123241231 = 1697 ⋅72623.

It is a cyclic number.

It is not a de Polignac number, because 132142321 - 2¹ = 132142319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6954859 = 132142321 / (1 + 3 + 2 + 1 + 4 + 2 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132142327) 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, 3477411 + ... + 3477448.

It is an arithmetic number, because the mean of its divisors is an integer number (34774300).

Almost surely, 2^132142321 is an apocalyptic number.

It is an amenable number.

132142321 is a deficient number, since it is larger than the sum of its proper divisors (6954879).

132142321 is an equidigital number, since it uses as much as digits as its factorization.

132142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954878.

The product of its digits is 288, while the sum is 19.

The square root of 132142321 is about 11495.3173509912. The cubic root of 132142321 is about 509.3472631013.

Adding to 132142321 its reverse (123241231), we get a palindrome (255383552).

The spelling of 132142321 in words is "one hundred thirty-two million, one hundred forty-two thousand, three hundred twenty-one".