13944015 has 16 divisors (see below), whose sum is σ = 24789600. Its totient is φ = 7436736.

The previous prime is 13944013. The next prime is 13944023. The reversal of 13944015 is 51044931.

It is not a de Polignac number, because 13944015 - 2¹ = 13944013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13944015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13944013) 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 15 ways as a sum of consecutive naturals, for example, 51510 + ... + 51779.

It is an arithmetic number, because the mean of its divisors is an integer number (1549350).

Almost surely, 2^13944015 is an apocalyptic number.

13944015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13944015 is a deficient number, since it is larger than the sum of its proper divisors (10845585).

13944015 is a wasteful number, since it uses less digits than its factorization.

13944015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103303 (or 103297 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13944015 is about 3734.1685821612. The cubic root of 13944015 is about 240.6925309980.

Adding to 13944015 its reverse (51044931), we get a palindrome (64988946).

The spelling of 13944015 in words is "thirteen million, nine hundred forty-four thousand, fifteen".