12812297 has 2 divisors, whose sum is σ = 12812298. Its totient is φ = 12812296.

The previous prime is 12812291. The next prime is 12812329. The reversal of 12812297 is 79221821.

It is a happy number.

It is an a-pointer prime, because the next prime (12812329) can be obtained adding 12812297 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12138256 + 674041 = 3484^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 12812297 - 2²² = 8617993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12812291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406148 + 6406149.

It is an arithmetic number, because the mean of its divisors is an integer number (6406149).

Almost surely, 2^12812297 is an apocalyptic number.

It is an amenable number.

12812297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12812297 is an equidigital number, since it uses as much as digits as its factorization.

12812297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 12812297 is about 3579.4269094368. The cubic root of 12812297 is about 233.9963047606.

The spelling of 12812297 in words is "twelve million, eight hundred twelve thousand, two hundred ninety-seven".