120489 has 4 divisors (see below), whose sum is σ = 160656. Its totient is φ = 80324.

The previous prime is 120473. The next prime is 120503. The reversal of 120489 is 984021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984021 = 3 ⋅328007.

It is a cyclic number.

It is not a de Polignac number, because 120489 - 2⁴ = 120473 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120489.

It is not an unprimeable number, because it can be changed into a prime (120689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20079 + ... + 20084.

It is an arithmetic number, because the mean of its divisors is an integer number (40164).

2¹²⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

120489 is a deficient number, since it is larger than the sum of its proper divisors (40167).

120489 is an equidigital number, since it uses as much as digits as its factorization.

120489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40166.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 120489 is about 347.1152546345. The cubic root of 120489 is about 49.3911494468.

The spelling of 120489 in words is "one hundred twenty thousand, four hundred eighty-nine".