320320193 has 2 divisors, whose sum is σ = 320320194. Its totient is φ = 320320192.

The previous prime is 320320177. The next prime is 320320213. The reversal of 320320193 is 391023023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286015744 + 34304449 = 16912^2 + 5857^2 .

It is a cyclic number.

It is not a de Polignac number, because 320320193 - 2⁴ = 320320177 is a prime.

It is not a weakly prime, because it can be changed into another prime (320320123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160160096 + 160160097.

It is an arithmetic number, because the mean of its divisors is an integer number (160160097).

Almost surely, 2^320320193 is an apocalyptic number.

It is an amenable number.

320320193 is a deficient number, since it is larger than the sum of its proper divisors (1).

320320193 is an equidigital number, since it uses as much as digits as its factorization.

320320193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 320320193 is about 17897.4912487756. The cubic root of 320320193 is about 684.2184369258.

The spelling of 320320193 in words is "three hundred twenty million, three hundred twenty thousand, one hundred ninety-three".