12618317 has 2 divisors, whose sum is σ = 12618318. Its totient is φ = 12618316.

The previous prime is 12618259. The next prime is 12618323. The reversal of 12618317 is 71381621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 1522756 = 3331^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 12618317 - 2⁶ = 12618253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12618317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309158 + 6309159.

It is an arithmetic number, because the mean of its divisors is an integer number (6309159).

Almost surely, 2^12618317 is an apocalyptic number.

It is an amenable number.

12618317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618317 is an equidigital number, since it uses as much as digits as its factorization.

12618317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 12618317 is about 3552.2270479236. The cubic root of 12618317 is about 232.8093819410.

Adding to 12618317 its reverse (71381621), we get a palindrome (83999938).

The spelling of 12618317 in words is "twelve million, six hundred eighteen thousand, three hundred seventeen".