12597121 has 2 divisors, whose sum is σ = 12597122. Its totient is φ = 12597120.

The previous prime is 12597097. The next prime is 12597157. The reversal of 12597121 is 12179521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 2768896 = 3135^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 12597121 - 2⁵ = 12597089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12597121.

It is not a weakly prime, because it can be changed into another prime (12597161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6298560 + 6298561.

It is an arithmetic number, because the mean of its divisors is an integer number (6298561).

Almost surely, 2^12597121 is an apocalyptic number.

It is an amenable number.

12597121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12597121 is an equidigital number, since it uses as much as digits as its factorization.

12597121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 28.

The square root of 12597121 is about 3549.2423135086. The cubic root of 12597121 is about 232.6789526804.

The spelling of 12597121 in words is "twelve million, five hundred ninety-seven thousand, one hundred twenty-one".