320455319 has 2 divisors, whose sum is σ = 320455320. Its totient is φ = 320455318.

The previous prime is 320455301. The next prime is 320455361. The reversal of 320455319 is 913554023.

It is a weak prime.

It is an emirp because it is prime and its reverse (913554023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320455319 - 2⁸ = 320455063 is a prime.

It is a super-2 number, since 2×320455319² = 205383222950783522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320455379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160227659 + 160227660.

It is an arithmetic number, because the mean of its divisors is an integer number (160227660).

Almost surely, 2^320455319 is an apocalyptic number.

320455319 is a deficient number, since it is larger than the sum of its proper divisors (1).

320455319 is an equidigital number, since it uses as much as digits as its factorization.

320455319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 320455319 is about 17901.2658490957. The cubic root of 320455319 is about 684.3146351517.

The spelling of 320455319 in words is "three hundred twenty million, four hundred fifty-five thousand, three hundred nineteen".