120289 has 8 divisors (see below), whose sum is σ = 136640. Its totient is φ = 104976.

The previous prime is 120283. The next prime is 120293. The reversal of 120289 is 982021.

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

It is a 8-Lehmer number, since φ(120289) divides (120289-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 120289 - 2¹³ = 112097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120283) 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, 4 + ... + 490.

It is an arithmetic number, because the mean of its divisors is an integer number (17080).

2¹²⁰²⁸⁹ is an apocalyptic number.

120289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

120289 is a deficient number, since it is larger than the sum of its proper divisors (16351).

120289 is a wasteful number, since it uses less digits than its factorization.

120289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 120289 is about 346.8270462349. The cubic root of 120289 is about 49.3638061469.

The spelling of 120289 in words is "one hundred twenty thousand, two hundred eighty-nine".