12618863 has 2 divisors, whose sum is σ = 12618864. Its totient is φ = 12618862.

The previous prime is 12618841. The next prime is 12618871. The reversal of 12618863 is 36881621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12618863 - 2²⁰ = 11570287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618803) 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, 6309431 + 6309432.

It is an arithmetic number, because the mean of its divisors is an integer number (6309432).

Almost surely, 2^12618863 is an apocalyptic number.

12618863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618863 is an equidigital number, since it uses as much as digits as its factorization.

12618863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 35.

The square root of 12618863 is about 3552.3039002878. The cubic root of 12618863 is about 232.8127398133.

The spelling of 12618863 in words is "twelve million, six hundred eighteen thousand, eight hundred sixty-three".