180489 has 8 divisors (see below), whose sum is σ = 254880. Its totient is φ = 113216.

The previous prime is 180473. The next prime is 180491. The reversal of 180489 is 984081.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 180489 - 2⁴ = 180473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180419) 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, 1719 + ... + 1820.

It is an arithmetic number, because the mean of its divisors is an integer number (31860).

2¹⁸⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

180489 is a deficient number, since it is larger than the sum of its proper divisors (74391).

180489 is a wasteful number, since it uses less digits than its factorization.

180489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 180489 is about 424.8399698710. The cubic root of 180489 is about 56.5132451261.

The spelling of 180489 in words is "one hundred eighty thousand, four hundred eighty-nine".