132722321 has 2 divisors, whose sum is σ = 132722322. Its totient is φ = 132722320.

The previous prime is 132722309. The next prime is 132722323. The reversal of 132722321 is 123227231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 64577296 = 8255^2 + 8036^2 .

It is an emirp because it is prime and its reverse (123227231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132722321 - 2¹⁰ = 132721297 is a prime.

It is a Sophie Germain prime.

Together with 132722323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (132722323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66361160 + 66361161.

It is an arithmetic number, because the mean of its divisors is an integer number (66361161).

Almost surely, 2^132722321 is an apocalyptic number.

It is an amenable number.

132722321 is a deficient number, since it is larger than the sum of its proper divisors (1).

132722321 is an equidigital number, since it uses as much as digits as its factorization.

132722321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 23.

The square root of 132722321 is about 11520.5173928952. The cubic root of 132722321 is about 510.0913856487.

Adding to 132722321 its reverse (123227231), we get a palindrome (255949552).

The spelling of 132722321 in words is "one hundred thirty-two million, seven hundred twenty-two thousand, three hundred twenty-one".