816163 has 2 divisors, whose sum is σ = 816164. Its totient is φ = 816162.

The previous prime is 816161. The next prime is 816169. The reversal of 816163 is 361618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 816163 - 2¹ = 816161 is a prime.

It is a super-2 number, since 2×816163² = 1332244085138, which contains 22 as substring.

Together with 816161, it forms a pair of twin primes.

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

It is not a weakly prime, because it can be changed into another prime (816161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408081 + 408082.

It is an arithmetic number, because the mean of its divisors is an integer number (408082).

2⁸¹⁶¹⁶³ is an apocalyptic number.

816163 is a deficient number, since it is larger than the sum of its proper divisors (1).

816163 is an equidigital number, since it uses as much as digits as its factorization.

816163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 816163 is about 903.4174007622. The cubic root of 816163 is about 93.4527962900.

It can be divided in two parts, 816 and 163, that added together give a palindrome (979).

The spelling of 816163 in words is "eight hundred sixteen thousand, one hundred sixty-three".