132303221 has 2 divisors, whose sum is σ = 132303222. Its totient is φ = 132303220.

The previous prime is 132303181. The next prime is 132303277. The reversal of 132303221 is 122303231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81252196 + 51051025 = 9014^2 + 7145^2 .

It is a cyclic number.

It is not a de Polignac number, because 132303221 - 2²⁶ = 65194357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 132303221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132303421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66151610 + 66151611.

It is an arithmetic number, because the mean of its divisors is an integer number (66151611).

Almost surely, 2^132303221 is an apocalyptic number.

It is an amenable number.

132303221 is a deficient number, since it is larger than the sum of its proper divisors (1).

132303221 is an equidigital number, since it uses as much as digits as its factorization.

132303221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 132303221 is about 11502.3137237688. The cubic root of 132303221 is about 509.5539108363.

Adding to 132303221 its reverse (122303231), we get a palindrome (254606452).

The spelling of 132303221 in words is "one hundred thirty-two million, three hundred three thousand, two hundred twenty-one".