132331321 has 4 divisors (see below), whose sum is σ = 136894500. Its totient is φ = 127768144.

The previous prime is 132331319. The next prime is 132331357. The reversal of 132331321 is 123133231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103815721 + 28515600 = 10189^2 + 5340^2 .

It is a cyclic number.

It is not a de Polignac number, because 132331321 - 2¹ = 132331319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (132331361) 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, 2281546 + ... + 2281603.

It is an arithmetic number, because the mean of its divisors is an integer number (34223625).

Almost surely, 2^132331321 is an apocalyptic number.

It is an amenable number.

132331321 is a deficient number, since it is larger than the sum of its proper divisors (4563179).

132331321 is an equidigital number, since it uses as much as digits as its factorization.

132331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563178.

The product of its digits is 324, while the sum is 19.

The square root of 132331321 is about 11503.5351522912. The cubic root of 132331321 is about 509.5899831537.

Adding to 132331321 its reverse (123133231), we get a palindrome (255464552).

The spelling of 132331321 in words is "one hundred thirty-two million, three hundred thirty-one thousand, three hundred twenty-one".