320245 has 8 divisors (see below), whose sum is σ = 404640. Its totient is φ = 242640.

The previous prime is 320239. The next prime is 320267. The reversal of 320245 is 542023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320245 - 2³ = 320237 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1591 + ... + 1780.

It is an arithmetic number, because the mean of its divisors is an integer number (50580).

2³²⁰²⁴⁵ is an apocalyptic number.

It is an amenable number.

320245 is a deficient number, since it is larger than the sum of its proper divisors (84395).

320245 is a wasteful number, since it uses less digits than its factorization.

320245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 320245 is about 565.9019349675. The cubic root of 320245 is about 68.4164894185.

Adding to 320245 its reverse (542023), we get a palindrome (862268).

It can be divided in two parts, 320 and 245, that multiplied together give a square (78400 = 280²).

The spelling of 320245 in words is "three hundred twenty thousand, two hundred forty-five".