12618497 has 2 divisors, whose sum is σ = 12618498. Its totient is φ = 12618496.

The previous prime is 12618493. The next prime is 12618503. The reversal of 12618497 is 79481621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 3352561 = 3044^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 12618497 - 2² = 12618493 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12618497.

It is not a weakly prime, because it can be changed into another prime (12618493) 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, 6309248 + 6309249.

It is an arithmetic number, because the mean of its divisors is an integer number (6309249).

Almost surely, 2^12618497 is an apocalyptic number.

It is an amenable number.

12618497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618497 is an equidigital number, since it uses as much as digits as its factorization.

12618497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 12618497 is about 3552.2523840516. The cubic root of 12618497 is about 232.8104889426.

The spelling of 12618497 in words is "twelve million, six hundred eighteen thousand, four hundred ninety-seven".