132521231 has 2 divisors, whose sum is σ = 132521232. Its totient is φ = 132521230.

The previous prime is 132521201. The next prime is 132521237. The reversal of 132521231 is 132125231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 132521231 - 2⁶ = 132521167 is a prime.

It is a super-2 number, since 2×132521231² = 35123753331510722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132521237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66260615 + 66260616.

It is an arithmetic number, because the mean of its divisors is an integer number (66260616).

Almost surely, 2^132521231 is an apocalyptic number.

132521231 is a deficient number, since it is larger than the sum of its proper divisors (1).

132521231 is an equidigital number, since it uses as much as digits as its factorization.

132521231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 20.

The square root of 132521231 is about 11511.7866119903. The cubic root of 132521231 is about 509.8336391906.

Adding to 132521231 its reverse (132125231), we get a palindrome (264646462).

The spelling of 132521231 in words is "one hundred thirty-two million, five hundred twenty-one thousand, two hundred thirty-one".