120129 has 8 divisors (see below), whose sum is σ = 167232. Its totient is φ = 76560.

The previous prime is 120121. The next prime is 120157. The reversal of 120129 is 921021.

It is a happy number.

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

It is not a de Polignac number, because 120129 - 2³ = 120121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (20904).

2¹²⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

120129 is a deficient number, since it is larger than the sum of its proper divisors (47103).

120129 is a wasteful number, since it uses less digits than its factorization.

120129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 120129 is about 346.5963069624. The cubic root of 120129 is about 49.3419096769.

It can be divided in two parts, 12012 and 9, that added together give a palindrome (12021).

The spelling of 120129 in words is "one hundred twenty thousand, one hundred twenty-nine".