320522245 has 16 divisors (see below), whose sum is σ = 389251008. Its totient is φ = 253348480.

The previous prime is 320522207. The next prime is 320522249. The reversal of 320522245 is 542225023.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-320522245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320522249) 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, 329610 + ... + 330580.

It is an arithmetic number, because the mean of its divisors is an integer number (24328188).

Almost surely, 2^320522245 is an apocalyptic number.

It is an amenable number.

320522245 is a deficient number, since it is larger than the sum of its proper divisors (68728763).

320522245 is a wasteful number, since it uses less digits than its factorization.

320522245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 320522245 is about 17903.1350606535. The cubic root of 320522245 is about 684.3622707612.

Adding to 320522245 its reverse (542225023), we get a palindrome (862747268).

The spelling of 320522245 in words is "three hundred twenty million, five hundred twenty-two thousand, two hundred forty-five".