320522001 has 8 divisors (see below), whose sum is σ = 449855520. Its totient is φ = 202434912.

The previous prime is 320521979. The next prime is 320522017. The reversal of 320522001 is 100225023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320522001 - 2⁹ = 320521489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320522801) 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 in 7 ways as a sum of consecutive naturals, for example, 2811540 + ... + 2811653.

It is an arithmetic number, because the mean of its divisors is an integer number (56231940).

Almost surely, 2^320522001 is an apocalyptic number.

It is an amenable number.

320522001 is a deficient number, since it is larger than the sum of its proper divisors (129333519).

320522001 is a wasteful number, since it uses less digits than its factorization.

320522001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623215.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 320522001 is about 17903.1282462032. The cubic root of 320522001 is about 684.3620971025.

Adding to 320522001 its reverse (100225023), we get a palindrome (420747024).

The spelling of 320522001 in words is "three hundred twenty million, five hundred twenty-two thousand, one".