44165 has 12 divisors (see below), whose sum is σ = 59052. Its totient is φ = 31680.

The previous prime is 44159. The next prime is 44171. The reversal of 44165 is 56144.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (44159) and next prime (44171).

It can be written as a sum of positive squares in 2 ways, for example, as 20449 + 23716 = 143^2 + 154^2 .

It is not a de Polignac number, because 44165 - 2⁶ = 44101 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 569 + ... + 641.

It is an arithmetic number, because the mean of its divisors is an integer number (4921).

2⁴⁴¹⁶⁵ is an apocalyptic number.

It is an amenable number.

44165 is a deficient number, since it is larger than the sum of its proper divisors (14887).

44165 is a wasteful number, since it uses less digits than its factorization.

44165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 89 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 44165 is about 210.1547049200. The cubic root of 44165 is about 35.3475576604.

It can be divided in two parts, 44 and 165, that multiplied together give a triangular number (7260 = T₁₂₀).

The spelling of 44165 in words is "forty-four thousand, one hundred sixty-five".