13856245 has 8 divisors (see below), whose sum is σ = 17906616. Its totient is φ = 10232256.

The previous prime is 13856243. The next prime is 13856251. The reversal of 13856245 is 54265831.

It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 13845841 = 102^2 + 3721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13856245 - 2¹ = 13856243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13856245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13856243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106522 + ... + 106651.

It is an arithmetic number, because the mean of its divisors is an integer number (2238327).

Almost surely, 2^13856245 is an apocalyptic number.

It is an amenable number.

13856245 is a deficient number, since it is larger than the sum of its proper divisors (4050371).

13856245 is a wasteful number, since it uses less digits than its factorization.

13856245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213191.

The product of its digits is 28800, while the sum is 34.

The square root of 13856245 is about 3722.3977487636. The cubic root of 13856245 is about 240.1864581108.

The spelling of 13856245 in words is "thirteen million, eight hundred fifty-six thousand, two hundred forty-five".