13944725 has 6 divisors (see below), whose sum is σ = 17291490. Its totient is φ = 11155760.

The previous prime is 13944713. The next prime is 13944757. The reversal of 13944725 is 52744931.

It can be written as a sum of positive squares in 3 ways, for example, as 3556996 + 10387729 = 1886^2 + 3223^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13944725 is a prime.

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 5 ways as a sum of consecutive naturals, for example, 278870 + ... + 278919.

It is an arithmetic number, because the mean of its divisors is an integer number (2881915).

Almost surely, 2^13944725 is an apocalyptic number.

It is an amenable number.

13944725 is a deficient number, since it is larger than the sum of its proper divisors (3346765).

13944725 is an equidigital number, since it uses as much as digits as its factorization.

13944725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557799 (or 557794 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 13944725 is about 3734.2636489675. The cubic root of 13944725 is about 240.6966161149.

The spelling of 13944725 in words is "thirteen million, nine hundred forty-four thousand, seven hundred twenty-five".