18396163 has 2 divisors, whose sum is σ = 18396164. Its totient is φ = 18396162.

The previous prime is 18396149. The next prime is 18396173. The reversal of 18396163 is 36169381.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18396163 is a prime.

It is not a weakly prime, because it can be changed into another prime (18396143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9198081 + 9198082.

It is an arithmetic number, because the mean of its divisors is an integer number (9198082).

Almost surely, 2^18396163 is an apocalyptic number.

18396163 is a deficient number, since it is larger than the sum of its proper divisors (1).

18396163 is an equidigital number, since it uses as much as digits as its factorization.

18396163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 18396163 is about 4289.0748419677. The cubic root of 18396163 is about 263.9828721288.

The spelling of 18396163 in words is "eighteen million, three hundred ninety-six thousand, one hundred sixty-three".