320513001 has 8 divisors (see below), whose sum is σ = 427518720. Its totient is φ = 213591312.

The previous prime is 320512991. The next prime is 320513003. The reversal of 320513001 is 100315023.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-320513001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320513003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11490 + ... + 27803.

It is an arithmetic number, because the mean of its divisors is an integer number (53439840).

Almost surely, 2^320513001 is an apocalyptic number.

It is an amenable number.

320513001 is a deficient number, since it is larger than the sum of its proper divisors (107005719).

320513001 is a wasteful number, since it uses less digits than its factorization.

320513001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42015.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 320513001 is about 17902.8768917177. The cubic root of 320513001 is about 684.3556915968.

Adding to 320513001 its reverse (100315023), we get a palindrome (420828024).

The spelling of 320513001 in words is "three hundred twenty million, five hundred thirteen thousand, one".