13839105 has 32 divisors (see below), whose sum is σ = 26797824. Its totient is φ = 5953536.

The previous prime is 13839097. The next prime is 13839109. The reversal of 13839105 is 50193831.

It is a happy number.

It is not a de Polignac number, because 13839105 - 2³ = 13839097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13839109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2092 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (837432).

Almost surely, 2^13839105 is an apocalyptic number.

13839105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13839105 is a deficient number, since it is larger than the sum of its proper divisors (12958719).

13839105 is a wasteful number, since it uses less digits than its factorization.

13839105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 13839105 is about 3720.0947568577. The cubic root of 13839105 is about 240.0873813760.

The spelling of 13839105 in words is "thirteen million, eight hundred thirty-nine thousand, one hundred five".