813163 has 8 divisors (see below), whose sum is σ = 889056. Its totient is φ = 739200.

The previous prime is 813157. The next prime is 813167. The reversal of 813163 is 361318.

813163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-813163 is a prime.

It is a super-2 number, since 2×813163² = 1322468129138, which contains 22 as substring.

It is a Duffinian number.

813163 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (813167) 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, 483 + ... + 1363.

It is an arithmetic number, because the mean of its divisors is an integer number (111132).

2⁸¹³¹⁶³ is an apocalyptic number.

813163 is a deficient number, since it is larger than the sum of its proper divisors (75893).

813163 is a wasteful number, since it uses less digits than its factorization.

813163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its digits is 432, while the sum is 22.

The square root of 813163 is about 901.7555101024. The cubic root of 813163 is about 93.3381530958.

The spelling of 813163 in words is "eight hundred thirteen thousand, one hundred sixty-three".