13163863 has 2 divisors, whose sum is σ = 13163864. Its totient is φ = 13163862.

The previous prime is 13163851. The next prime is 13163869. The reversal of 13163863 is 36836131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13163863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13163869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6581931 + 6581932.

It is an arithmetic number, because the mean of its divisors is an integer number (6581932).

Almost surely, 2^13163863 is an apocalyptic number.

13163863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13163863 is an equidigital number, since it uses as much as digits as its factorization.

13163863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 13163863 is about 3628.2038255864. The cubic root of 13163863 is about 236.1172870521.

Adding to 13163863 its reverse (36836131), we get a palindrome (49999994).

The spelling of 13163863 in words is "thirteen million, one hundred sixty-three thousand, eight hundred sixty-three".