18326163 has 8 divisors (see below), whose sum is σ = 24526800. Its totient is φ = 12171488.

The previous prime is 18326159. The next prime is 18326171. The reversal of 18326163 is 36162381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18326163 - 2² = 18326159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18326163.

It is not an unprimeable number, because it can be changed into a prime (18326123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10548 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (3065850).

Almost surely, 2^18326163 is an apocalyptic number.

18326163 is a deficient number, since it is larger than the sum of its proper divisors (6200637).

18326163 is a wasteful number, since it uses less digits than its factorization.

18326163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22981.

The product of its digits is 5184, while the sum is 30.

The square root of 18326163 is about 4280.9067964626. The cubic root of 18326163 is about 263.6476158243.

The spelling of 18326163 in words is "eighteen million, three hundred twenty-six thousand, one hundred sixty-three".