13944065 has 4 divisors (see below), whose sum is σ = 16732884. Its totient is φ = 11155248.

The previous prime is 13944061. The next prime is 13944103. The reversal of 13944065 is 56044931.

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 9991921 + 3952144 = 3161^2 + 1988^2 .

It is a cyclic number.

It is not a de Polignac number, because 13944065 - 2² = 13944061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13944061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394402 + ... + 1394411.

It is an arithmetic number, because the mean of its divisors is an integer number (4183221).

Almost surely, 2^13944065 is an apocalyptic number.

It is an amenable number.

13944065 is a deficient number, since it is larger than the sum of its proper divisors (2788819).

13944065 is an equidigital number, since it uses as much as digits as its factorization.

13944065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788818.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13944065 is about 3734.1752770860. The cubic root of 13944065 is about 240.6928186868.

Adding to 13944065 its reverse (56044931), we get a palindrome (69988996).

The spelling of 13944065 in words is "thirteen million, nine hundred forty-four thousand, sixty-five".