13013863 has 2 divisors, whose sum is σ = 13013864. Its totient is φ = 13013862.

The previous prime is 13013849. The next prime is 13013867. The reversal of 13013863 is 36831031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13013867) 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, 6506931 + 6506932.

It is an arithmetic number, because the mean of its divisors is an integer number (6506932).

Almost surely, 2^13013863 is an apocalyptic number.

13013863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13013863 is an equidigital number, since it uses as much as digits as its factorization.

13013863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13013863 is about 3607.4732154238. The cubic root of 13013863 is about 235.2170199844.

Adding to 13013863 its reverse (36831031), we get a palindrome (49844894).

The spelling of 13013863 in words is "thirteen million, thirteen thousand, eight hundred sixty-three".