164885 has 12 divisors (see below), whose sum is σ = 230508. Its totient is φ = 112896.

The previous prime is 164881. The next prime is 164893. The reversal of 164885 is 588461.

It can be written as a sum of positive squares in 2 ways, for example, as 56644 + 108241 = 238^2 + 329^2 .

It is not a de Polignac number, because 164885 - 2² = 164881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92 + ... + 581.

It is an arithmetic number, because the mean of its divisors is an integer number (19209).

2¹⁶⁴⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

164885 is a deficient number, since it is larger than the sum of its proper divisors (65623).

164885 is an equidigital number, since it uses as much as digits as its factorization.

164885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 685 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 164885 is about 406.0603403436. The cubic root of 164885 is about 54.8353200829.

The spelling of 164885 in words is "one hundred sixty-four thousand, eight hundred eighty-five".