810163 has 8 divisors (see below), whose sum is σ = 842688. Its totient is φ = 778344.

The previous prime is 810151. The next prime is 810191. The reversal of 810163 is 361018.

810163 = T₉₂ + T₉₃ + ... + T₁₇₇.

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-810163 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 810163.

It is not an unprimeable number, because it can be changed into a prime (810193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3456 + ... + 3682.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2⁸¹⁰¹⁶³ is an apocalyptic number.

810163 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

810163 is a deficient number, since it is larger than the sum of its proper divisors (32525).

810163 is a wasteful number, since it uses less digits than its factorization.

810163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 810163 is about 900.0905510003. The cubic root of 810163 is about 93.2232275851.

The spelling of 810163 in words is "eight hundred ten thousand, one hundred sixty-three".