120285172 has 12 divisors (see below), whose sum is σ = 240570400. Its totient is φ = 51550776.

The previous prime is 120285169. The next prime is 120285197. The reversal of 120285172 is 271582021.

120285172 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4295899 = 120285172 / (1 + 2 + 0 + 2 + 8 + 5 + 1 + 7 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 120285172.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2147922 + ... + 2147977.

Almost surely, 2^120285172 is an apocalyptic number.

It is an amenable number.

120285172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120285172 is a wasteful number, since it uses less digits than its factorization.

120285172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295910 (or 4295908 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 120285172 is about 10967.4596876396. The cubic root of 120285172 is about 493.6328250067.

The spelling of 120285172 in words is "one hundred twenty million, two hundred eighty-five thousand, one hundred seventy-two".