12332521 has 2 divisors, whose sum is σ = 12332522. Its totient is φ = 12332520.

The previous prime is 12332491. The next prime is 12332527. The reversal of 12332521 is 12523321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9217296 + 3115225 = 3036^2 + 1765^2 .

It is an emirp because it is prime and its reverse (12523321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12332521 - 2¹¹ = 12330473 is a prime.

It is not a weakly prime, because it can be changed into another prime (12332527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6166260 + 6166261.

It is an arithmetic number, because the mean of its divisors is an integer number (6166261).

Almost surely, 2^12332521 is an apocalyptic number.

It is an amenable number.

12332521 is a deficient number, since it is larger than the sum of its proper divisors (1).

12332521 is an equidigital number, since it uses as much as digits as its factorization.

12332521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 12332521 is about 3511.7689274780. The cubic root of 12332521 is about 231.0382862897.

Adding to 12332521 its reverse (12523321), we get a palindrome (24855842).

The spelling of 12332521 in words is "twelve million, three hundred thirty-two thousand, five hundred twenty-one".