120864172 has 48 divisors (see below), whose sum is σ = 259322112. Its totient is φ = 48502080.

The previous prime is 120864143. The next prime is 120864173. The reversal of 120864172 is 271468021.

It is not an unprimeable number, because it can be changed into a prime (120864173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8563 + ... + 17749.

It is an arithmetic number, because the mean of its divisors is an integer number (5402544).

Almost surely, 2^120864172 is an apocalyptic number.

It is an amenable number.

120864172 is an abundant number, since it is smaller than the sum of its proper divisors (138457940).

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

120864172 is a wasteful number, since it uses less digits than its factorization.

120864172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9238 (or 9236 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 120864172 is about 10993.8242663779. The cubic root of 120864172 is about 494.4236014312.

The spelling of 120864172 in words is "one hundred twenty million, eight hundred sixty-four thousand, one hundred seventy-two".