320259 has 4 divisors (see below), whose sum is σ = 427016. Its totient is φ = 213504.

The previous prime is 320239. The next prime is 320267. The reversal of 320259 is 952023.

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

It is not a de Polignac number, because 320259 - 2⁹ = 319747 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320259.

It is not an unprimeable number, because it can be changed into a prime (320209) 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, 53374 + ... + 53379.

It is an arithmetic number, because the mean of its divisors is an integer number (106754).

2³²⁰²⁵⁹ is an apocalyptic number.

320259 is a deficient number, since it is larger than the sum of its proper divisors (106757).

320259 is a wasteful number, since it uses less digits than its factorization.

320259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106756.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 320259 is about 565.9143044667. The cubic root of 320259 is about 68.4174863811.

The spelling of 320259 in words is "three hundred twenty thousand, two hundred fifty-nine".