320165383 has 2 divisors, whose sum is σ = 320165384. Its totient is φ = 320165382.

The previous prime is 320165353. The next prime is 320165399. The reversal of 320165383 is 383561023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320165383 - 2¹³ = 320157191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320165323) 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 as a sum of consecutive naturals, namely, 160082691 + 160082692.

It is an arithmetic number, because the mean of its divisors is an integer number (160082692).

Almost surely, 2^320165383 is an apocalyptic number.

320165383 is a deficient number, since it is larger than the sum of its proper divisors (1).

320165383 is an equidigital number, since it uses as much as digits as its factorization.

320165383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 320165383 is about 17893.1658182670. The cubic root of 320165383 is about 684.1081921068.

The spelling of 320165383 in words is "three hundred twenty million, one hundred sixty-five thousand, three hundred eighty-three".