13869205 has 16 divisors (see below), whose sum is σ = 19411200. Its totient is φ = 9509136.

The previous prime is 13869203. The next prime is 13869209. The reversal of 13869205 is 50296831.

It is not a de Polignac number, because 13869205 - 2¹ = 13869203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13869203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2329 + ... + 5758.

It is an arithmetic number, because the mean of its divisors is an integer number (1213200).

Almost surely, 2^13869205 is an apocalyptic number.

It is an amenable number.

13869205 is a deficient number, since it is larger than the sum of its proper divisors (5541995).

13869205 is an frugal number, since it uses more digits than its factorization.

13869205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113 (or 8099 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 13869205 is about 3724.1381553320. The cubic root of 13869205 is about 240.2613183756.

The spelling of 13869205 in words is "thirteen million, eight hundred sixty-nine thousand, two hundred five".