44136565 has 12 divisors (see below), whose sum is σ = 58217292. Its totient is φ = 32098880.

The previous prime is 44136551. The next prime is 44136569. The reversal of 44136565 is 56563144.

44136565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 25826724 = 4279^2 + 5082^2 .

It is not a de Polignac number, because 44136565 - 2²⁵ = 10582133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44136565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44136569) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 35872 + ... + 37081.

It is an arithmetic number, because the mean of its divisors is an integer number (4851441).

Almost surely, 2^44136565 is an apocalyptic number.

It is an amenable number.

44136565 is a deficient number, since it is larger than the sum of its proper divisors (14080727).

44136565 is a wasteful number, since it uses less digits than its factorization.

44136565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72980 (or 72969 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 44136565 is about 6643.5355797948. The cubic root of 44136565 is about 353.3997002624.

The spelling of 44136565 in words is "forty-four million, one hundred thirty-six thousand, five hundred sixty-five".