132431521 has 2 divisors, whose sum is σ = 132431522. Its totient is φ = 132431520.

The previous prime is 132431489. The next prime is 132431527. The reversal of 132431521 is 125134231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129049600 + 3381921 = 11360^2 + 1839^2 .

It is a cyclic number.

It is not a de Polignac number, because 132431521 - 2⁵ = 132431489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132431492 and 132431501.

It is not a weakly prime, because it can be changed into another prime (132431527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66215760 + 66215761.

It is an arithmetic number, because the mean of its divisors is an integer number (66215761).

Almost surely, 2^132431521 is an apocalyptic number.

It is an amenable number.

132431521 is a deficient number, since it is larger than the sum of its proper divisors (1).

132431521 is an equidigital number, since it uses as much as digits as its factorization.

132431521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 132431521 is about 11507.8895111137. The cubic root of 132431521 is about 509.7185695778.

Adding to 132431521 its reverse (125134231), we get a palindrome (257565752).

The spelling of 132431521 in words is "one hundred thirty-two million, four hundred thirty-one thousand, five hundred twenty-one".