320159 has 4 divisors (see below), whose sum is σ = 365904. Its totient is φ = 274416.

The previous prime is 320153. The next prime is 320179. The reversal of 320159 is 951023.

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 320159 - 2⁴ = 320143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320159.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320159.

It is not an unprimeable number, because it can be changed into a prime (320153) 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 3 ways as a sum of consecutive naturals, for example, 22862 + ... + 22875.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2³²⁰¹⁵⁹ is an apocalyptic number.

320159 is a deficient number, since it is larger than the sum of its proper divisors (45745).

320159 is an equidigital number, since it uses as much as digits as its factorization.

320159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45744.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 320159 is about 565.8259449689. The cubic root of 320159 is about 68.4103645819.

The spelling of 320159 in words is "three hundred twenty thousand, one hundred fifty-nine".