13938245 has 4 divisors (see below), whose sum is σ = 16725900. Its totient is φ = 11150592.

The previous prime is 13938227. The next prime is 13938247. The reversal of 13938245 is 54283931.

13938245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7214596 + 6723649 = 2686^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 13938245 - 2¹⁸ = 13676101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938247) 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, 1393820 + ... + 1393829.

It is an arithmetic number, because the mean of its divisors is an integer number (4181475).

Almost surely, 2^13938245 is an apocalyptic number.

It is an amenable number.

13938245 is a deficient number, since it is larger than the sum of its proper divisors (2787655).

13938245 is an equidigital number, since it uses as much as digits as its factorization.

13938245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787654.

The product of its digits is 25920, while the sum is 35.

The square root of 13938245 is about 3733.3959072137. The cubic root of 13938245 is about 240.6593270868.

The spelling of 13938245 in words is "thirteen million, nine hundred thirty-eight thousand, two hundred forty-five".