12289297 has 2 divisors, whose sum is σ = 12289298. Its totient is φ = 12289296.

The previous prime is 12289289. The next prime is 12289309. The reversal of 12289297 is 79298221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6548481 + 5740816 = 2559^2 + 2396^2 .

It is a cyclic number.

It is not a de Polignac number, because 12289297 - 2³ = 12289289 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (12289247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6144648 + 6144649.

It is an arithmetic number, because the mean of its divisors is an integer number (6144649).

Almost surely, 2^12289297 is an apocalyptic number.

It is an amenable number.

12289297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12289297 is an equidigital number, since it uses as much as digits as its factorization.

12289297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 12289297 is about 3505.6093621509. The cubic root of 12289297 is about 230.7680498771.

The spelling of 12289297 in words is "twelve million, two hundred eighty-nine thousand, two hundred ninety-seven".