811163 has 2 divisors, whose sum is σ = 811164. Its totient is φ = 811162.

The previous prime is 811157. The next prime is 811171. The reversal of 811163 is 361118.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 811163 - 2⁴ = 811147 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (811123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405581 + 405582.

It is an arithmetic number, because the mean of its divisors is an integer number (405582).

2⁸¹¹¹⁶³ is an apocalyptic number.

811163 is a deficient number, since it is larger than the sum of its proper divisors (1).

811163 is an equidigital number, since it uses as much as digits as its factorization.

811163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 811163 is about 900.6458793555. The cubic root of 811163 is about 93.2615675645.

The spelling of 811163 in words is "eight hundred eleven thousand, one hundred sixty-three".