164539 has 4 divisors (see below), whose sum is σ = 169024. Its totient is φ = 160056.

The previous prime is 164531. The next prime is 164569. The reversal of 164539 is 935461.

164539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164539 - 2³ = 164531 is a prime.

It is a Duffinian number.

164539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (164531) 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, 2187 + ... + 2260.

It is an arithmetic number, because the mean of its divisors is an integer number (42256).

2¹⁶⁴⁵³⁹ is an apocalyptic number.

164539 is a deficient number, since it is larger than the sum of its proper divisors (4485).

164539 is an equidigital number, since it uses as much as digits as its factorization.

164539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484.

The product of its digits is 3240, while the sum is 28.

The square root of 164539 is about 405.6340715473. The cubic root of 164539 is about 54.7969371545.

It can be divided in two parts, 164 and 539, that added together give a triangular number (703 = T₃₇).

The spelling of 164539 in words is "one hundred sixty-four thousand, five hundred thirty-nine".