164589 has 8 divisors (see below), whose sum is σ = 222432. Its totient is φ = 108240.

The previous prime is 164587. The next prime is 164599. The reversal of 164589 is 985461.

164589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 164589 - 2¹ = 164587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164581) 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, 82 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (27804).

2¹⁶⁴⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

164589 is a deficient number, since it is larger than the sum of its proper divisors (57843).

164589 is an equidigital number, since it uses as much as digits as its factorization.

164589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 8640, while the sum is 33.

The square root of 164589 is about 405.6956987694. The cubic root of 164589 is about 54.8024871445.

The spelling of 164589 in words is "one hundred sixty-four thousand, five hundred eighty-nine".