818163 has 6 divisors (see below), whose sum is σ = 1181804. Its totient is φ = 545436.

The previous prime is 818143. The next prime is 818171. The reversal of 818163 is 361818.

It is not a de Polignac number, because 818163 - 2⁶ = 818099 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 818163.

It is not an unprimeable number, because it can be changed into a prime (818113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45445 + ... + 45462.

2⁸¹⁸¹⁶³ is an apocalyptic number.

818163 is a deficient number, since it is larger than the sum of its proper divisors (363641).

818163 is a wasteful number, since it uses less digits than its factorization.

818163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90913 (or 90910 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 818163 is about 904.5236315321. The cubic root of 818163 is about 93.5290690974.

The spelling of 818163 in words is "eight hundred eighteen thousand, one hundred sixty-three".