12801863 has 2 divisors, whose sum is σ = 12801864. Its totient is φ = 12801862.

The previous prime is 12801829. The next prime is 12801911. The reversal of 12801863 is 36810821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12801863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12801163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400931 + 6400932.

It is an arithmetic number, because the mean of its divisors is an integer number (6400932).

Almost surely, 2^12801863 is an apocalyptic number.

12801863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12801863 is an equidigital number, since it uses as much as digits as its factorization.

12801863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 12801863 is about 3577.9691166918. The cubic root of 12801863 is about 233.9327673503.

The spelling of 12801863 in words is "twelve million, eight hundred one thousand, eight hundred sixty-three".