320655013 has 8 divisors (see below), whose sum is σ = 366816128. Its totient is φ = 274582224.

The previous prime is 320655011. The next prime is 320655019. The reversal of 320655013 is 310556023.

It is a happy number.

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

It is not a de Polignac number, because 320655013 - 2¹ = 320655011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320655011) 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, 14106 + ... + 28987.

It is an arithmetic number, because the mean of its divisors is an integer number (45852016).

Almost surely, 2^320655013 is an apocalyptic number.

It is an amenable number.

320655013 is a deficient number, since it is larger than the sum of its proper divisors (46161115).

320655013 is a wasteful number, since it uses less digits than its factorization.

320655013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44163.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 320655013 is about 17906.8426306817. The cubic root of 320655013 is about 684.4567508050.

The spelling of 320655013 in words is "three hundred twenty million, six hundred fifty-five thousand, thirteen".