132404321 has 24 divisors (see below), whose sum is σ = 157860360. Its totient is φ = 110702592.

The previous prime is 132404287. The next prime is 132404329. The reversal of 132404321 is 123404231.

It can be written as a sum of positive squares in 4 ways, for example, as 3013696 + 129390625 = 1736^2 + 11375^2 .

It is not a de Polignac number, because 132404321 - 2¹⁸ = 132142177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132404293 and 132404302.

It is not an unprimeable number, because it can be changed into a prime (132404329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 422861 + ... + 423173.

It is an arithmetic number, because the mean of its divisors is an integer number (6577515).

Almost surely, 2^132404321 is an apocalyptic number.

It is an amenable number.

132404321 is a deficient number, since it is larger than the sum of its proper divisors (25456039).

132404321 is an equidigital number, since it uses as much as digits as its factorization.

132404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 132404321 is about 11506.7076524956. The cubic root of 132404321 is about 509.6836702973.

Adding to 132404321 its reverse (123404231), we get a palindrome (255808552).

The spelling of 132404321 in words is "one hundred thirty-two million, four hundred four thousand, three hundred twenty-one".