320005315 has 16 divisors (see below), whose sum is σ = 461963520. Its totient is φ = 207882720.

The previous prime is 320005247. The next prime is 320005319. The reversal of 320005315 is 513500023.

It is not a de Polignac number, because 320005315 - 2⁹ = 320004803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 320005292 and 320005301.

It is not an unprimeable number, because it can be changed into a prime (320005319) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 239941 + ... + 241270.

It is an arithmetic number, because the mean of its divisors is an integer number (28872720).

Almost surely, 2^320005315 is an apocalyptic number.

320005315 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

320005315 is a deficient number, since it is larger than the sum of its proper divisors (141958205).

320005315 is a wasteful number, since it uses less digits than its factorization.

320005315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481242.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 320005315 is about 17888.6923781477. The cubic root of 320005315 is about 683.9941655339.

Adding to 320005315 its reverse (513500023), we get a palindrome (833505338).

The spelling of 320005315 in words is "three hundred twenty million, five thousand, three hundred fifteen".