13806138 has 8 divisors (see below), whose sum is σ = 27612288. Its totient is φ = 4602044.

The previous prime is 13806131. The next prime is 13806211. The reversal of 13806138 is 83160831.

13806138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

13806138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13806131) 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, 1150506 + ... + 1150517.

It is an arithmetic number, because the mean of its divisors is an integer number (3451536).

Almost surely, 2^13806138 is an apocalyptic number.

13806138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13806138 is a wasteful number, since it uses less digits than its factorization.

13806138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301028.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 13806138 is about 3715.6611793865. The cubic root of 13806138 is about 239.8965873918.

Adding to 13806138 its reverse (83160831), we get a palindrome (96966969).

The spelling of 13806138 in words is "thirteen million, eight hundred six thousand, one hundred thirty-eight".