4144165 has 4 divisors (see below), whose sum is σ = 4973004. Its totient is φ = 3315328.

The previous prime is 4144159. The next prime is 4144177. The reversal of 4144165 is 5614414.

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

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 3323329 = 906^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144165 - 2¹⁹ = 3619877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414412 + ... + 414421.

It is an arithmetic number, because the mean of its divisors is an integer number (1243251).

Almost surely, 2^4144165 is an apocalyptic number.

It is an amenable number.

4144165 is a deficient number, since it is larger than the sum of its proper divisors (828839).

4144165 is an equidigital number, since it uses as much as digits as its factorization.

4144165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828838.

The product of its digits is 1920, while the sum is 25.

The square root of 4144165 is about 2035.7222305609. The cubic root of 4144165 is about 160.6247061520.

Adding to 4144165 its reverse (5614414), we get a palindrome (9758579).

The spelling of 4144165 in words is "four million, one hundred forty-four thousand, one hundred sixty-five".