320113985 has 8 divisors (see below), whose sum is σ = 388765440. Its totient is φ = 253005424.

The previous prime is 320113951. The next prime is 320113991. The reversal of 320113985 is 589311023.

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

It is a cyclic number.

It is not a de Polignac number, because 320113985 - 2⁶ = 320113921 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 385265 + ... + 386094.

It is an arithmetic number, because the mean of its divisors is an integer number (48595680).

Almost surely, 2^320113985 is an apocalyptic number.

It is an amenable number.

320113985 is a deficient number, since it is larger than the sum of its proper divisors (68651455).

320113985 is an equidigital number, since it uses as much as digits as its factorization.

320113985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771447.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 320113985 is about 17891.7295139402. The cubic root of 320113985 is about 684.0715821999.

The spelling of 320113985 in words is "three hundred twenty million, one hundred thirteen thousand, nine hundred eighty-five".