13921163 has 2 divisors, whose sum is σ = 13921164. Its totient is φ = 13921162.

The previous prime is 13921123. The next prime is 13921211. The reversal of 13921163 is 36112931.

It is a weak prime.

It is an emirp because it is prime and its reverse (36112931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13921163 - 2¹⁶ = 13855627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13921123) 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, 6960581 + 6960582.

It is an arithmetic number, because the mean of its divisors is an integer number (6960582).

Almost surely, 2^13921163 is an apocalyptic number.

13921163 is a deficient number, since it is larger than the sum of its proper divisors (1).

13921163 is an equidigital number, since it uses as much as digits as its factorization.

13921163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 26.

The square root of 13921163 is about 3731.1074763400. The cubic root of 13921163 is about 240.5609736437.

The spelling of 13921163 in words is "thirteen million, nine hundred twenty-one thousand, one hundred sixty-three".