164265 has 16 divisors (see below), whose sum is σ = 269568. Its totient is φ = 85376.

The previous prime is 164251. The next prime is 164267. The reversal of 164265 is 562461.

164265 = T₅₉ + T₆₀ + ... + T₁₀₅.

It is a cyclic number.

It is not a de Polignac number, because 164265 - 2⁴ = 164249 is a prime.

Its product of digits (1440) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589 + ... + 821.

It is an arithmetic number, because the mean of its divisors is an integer number (16848).

2¹⁶⁴²⁶⁵ is an apocalyptic number.

164265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164265 is a deficient number, since it is larger than the sum of its proper divisors (105303).

164265 is a wasteful number, since it uses less digits than its factorization.

164265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288.

The product of its digits is 1440, while the sum is 24.

The square root of 164265 is about 405.2961879910. The cubic root of 164265 is about 54.7665032295.

The spelling of 164265 in words is "one hundred sixty-four thousand, two hundred sixty-five".