320163 has 4 divisors (see below), whose sum is σ = 426888. Its totient is φ = 213440.

The previous prime is 320153. The next prime is 320179. The reversal of 320163 is 361023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320163 - 2¹² = 316067 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (320113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53358 + ... + 53363.

It is an arithmetic number, because the mean of its divisors is an integer number (106722).

2³²⁰¹⁶³ is an apocalyptic number.

320163 is a deficient number, since it is larger than the sum of its proper divisors (106725).

320163 is a wasteful number, since it uses less digits than its factorization.

320163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106724.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 320163 is about 565.8294796138. The cubic root of 320163 is about 68.4106494824.

Adding to 320163 its reverse (361023), we get a palindrome (681186).

The spelling of 320163 in words is "three hundred twenty thousand, one hundred sixty-three".