120447985 has 8 divisors (see below), whose sum is σ = 165185856. Its totient is φ = 82592880.

The previous prime is 120447979. The next prime is 120447997. The reversal of 120447985 is 589744021.

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

It is not a de Polignac number, because 120447985 - 2⁵ = 120447953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1720651 + ... + 1720720.

It is an arithmetic number, because the mean of its divisors is an integer number (20648232).

Almost surely, 2^120447985 is an apocalyptic number.

It is an amenable number.

120447985 is a deficient number, since it is larger than the sum of its proper divisors (44737871).

120447985 is an equidigital number, since it uses as much as digits as its factorization.

120447985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441383.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 120447985 is about 10974.8797259924. The cubic root of 120447985 is about 493.8554448727.

The spelling of 120447985 in words is "one hundred twenty million, four hundred forty-seven thousand, nine hundred eighty-five".