18163163 has 2 divisors, whose sum is σ = 18163164. Its totient is φ = 18163162.

The previous prime is 18163151. The next prime is 18163199. The reversal of 18163163 is 36136181.

It is a weak prime.

It is an emirp because it is prime and its reverse (36136181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18163163 - 2¹² = 18159067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18163063) 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, 9081581 + 9081582.

It is an arithmetic number, because the mean of its divisors is an integer number (9081582).

Almost surely, 2^18163163 is an apocalyptic number.

18163163 is a deficient number, since it is larger than the sum of its proper divisors (1).

18163163 is an equidigital number, since it uses as much as digits as its factorization.

18163163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 18163163 is about 4261.8262517376. The cubic root of 18163163 is about 262.8636254618.

The spelling of 18163163 in words is "eighteen million, one hundred sixty-three thousand, one hundred sixty-three".