320495 has 8 divisors (see below), whose sum is σ = 439584. Its totient is φ = 219744.

The previous prime is 320483. The next prime is 320513. The reversal of 320495 is 594023.

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

It is not a de Polignac number, because 320495 - 2⁶ = 320431 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 320495.

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 320495.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (54948).

2³²⁰⁴⁹⁵ is an apocalyptic number.

320495 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

320495 is a deficient number, since it is larger than the sum of its proper divisors (119089).

320495 is an equidigital number, since it uses as much as digits as its factorization.

320495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9169.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 320495 is about 566.1227782027. The cubic root of 320495 is about 68.4342879514.

The spelling of 320495 in words is "three hundred twenty thousand, four hundred ninety-five".