13836243 has 4 divisors (see below), whose sum is σ = 18448328. Its totient is φ = 9224160.

The previous prime is 13836241. The next prime is 13836257. The reversal of 13836243 is 34263831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13836243 - 2¹ = 13836241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13836243.

It is not an unprimeable number, because it can be changed into a prime (13836241) 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, 2306038 + ... + 2306043.

It is an arithmetic number, because the mean of its divisors is an integer number (4612082).

Almost surely, 2^13836243 is an apocalyptic number.

13836243 is a deficient number, since it is larger than the sum of its proper divisors (4612085).

13836243 is an equidigital number, since it uses as much as digits as its factorization.

13836243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612084.

The product of its digits is 10368, while the sum is 30.

The square root of 13836243 is about 3719.7100693468. The cubic root of 13836243 is about 240.0708297888.

It can be divided in two parts, 1383 and 6243, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 13836243 in words is "thirteen million, eight hundred thirty-six thousand, two hundred forty-three".