120133209 has 16 divisors (see below), whose sum is σ = 191020032. Its totient is φ = 65662608.

The previous prime is 120133193. The next prime is 120133231. The reversal of 120133209 is 902331021.

It is a happy number.

It is not a de Polignac number, because 120133209 - 2⁴ = 120133193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (120133249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123879 + ... + 124844.

It is an arithmetic number, because the mean of its divisors is an integer number (11938752).

Almost surely, 2^120133209 is an apocalyptic number.

It is an amenable number.

120133209 is a deficient number, since it is larger than the sum of its proper divisors (70886823).

120133209 is a wasteful number, since it uses less digits than its factorization.

120133209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248756.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 120133209 is about 10960.5295948690. The cubic root of 120133209 is about 493.4248593983.

The spelling of 120133209 in words is "one hundred twenty million, one hundred thirty-three thousand, two hundred nine".