164605 has 8 divisors (see below), whose sum is σ = 225792. Its totient is φ = 112848.

The previous prime is 164599. The next prime is 164617. The reversal of 164605 is 506461.

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 164605 - 2⁷ = 164477 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2317 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (28224).

2¹⁶⁴⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

164605 is a deficient number, since it is larger than the sum of its proper divisors (61187).

164605 is an equidigital number, since it uses as much as digits as its factorization.

164605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 164605 is about 405.7154175035. The cubic root of 164605 is about 54.8042629039.

The spelling of 164605 in words is "one hundred sixty-four thousand, six hundred five".