120985 has 4 divisors (see below), whose sum is σ = 145188. Its totient is φ = 96784.

The previous prime is 120977. The next prime is 120997. The reversal of 120985 is 589021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 85264 = 189^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 120985 - 2³ = 120977 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12094 + ... + 12103.

It is an arithmetic number, because the mean of its divisors is an integer number (36297).

2¹²⁰⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

120985 is a deficient number, since it is larger than the sum of its proper divisors (24203).

120985 is an equidigital number, since it uses as much as digits as its factorization.

120985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 120985 is about 347.8289809662. The cubic root of 120985 is about 49.4588305102.

The spelling of 120985 in words is "one hundred twenty thousand, nine hundred eighty-five".