120456217 has 8 divisors (see below), whose sum is σ = 137736512. Its totient is φ = 103194000.

The previous prime is 120456199. The next prime is 120456223. The reversal of 120456217 is 712654021.

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-120456217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120456617) by changing a digit.

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, 15967 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (17217064).

Almost surely, 2^120456217 is an apocalyptic number.

It is an amenable number.

120456217 is a deficient number, since it is larger than the sum of its proper divisors (17280295).

120456217 is an equidigital number, since it uses as much as digits as its factorization.

120456217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 120456217 is about 10975.2547578633. The cubic root of 120456217 is about 493.8666954426.

The spelling of 120456217 in words is "one hundred twenty million, four hundred fifty-six thousand, two hundred seventeen".