320045133 has 16 divisors (see below), whose sum is σ = 430928000. Its totient is φ = 211273920.

The previous prime is 320045113. The next prime is 320045149. The reversal of 320045133 is 331540023.

It is not a de Polignac number, because 320045133 - 2¹⁴ = 320028749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320045113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135543 + ... + 137883.

It is an arithmetic number, because the mean of its divisors is an integer number (26933000).

Almost surely, 2^320045133 is an apocalyptic number.

It is an amenable number.

320045133 is a deficient number, since it is larger than the sum of its proper divisors (110882867).

320045133 is a wasteful number, since it uses less digits than its factorization.

320045133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 320045133 is about 17889.8052812209. The cubic root of 320045133 is about 684.0225339692.

Adding to 320045133 its reverse (331540023), we get a palindrome (651585156).

The spelling of 320045133 in words is "three hundred twenty million, forty-five thousand, one hundred thirty-three".