13644105 has 16 divisors (see below), whose sum is σ = 22037184. Its totient is φ = 7208000.

The previous prime is 13644091. The next prime is 13644107. The reversal of 13644105 is 50144631.

It is not a de Polignac number, because 13644105 - 2⁴ = 13644089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13644107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2646 + ... + 5855.

It is an arithmetic number, because the mean of its divisors is an integer number (1377324).

Almost surely, 2^13644105 is an apocalyptic number.

13644105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13644105 is a deficient number, since it is larger than the sum of its proper divisors (8393079).

13644105 is a wasteful number, since it uses less digits than its factorization.

13644105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13644105 is about 3693.7927662499. The cubic root of 13644105 is about 238.9543921890.

Adding to 13644105 its reverse (50144631), we get a palindrome (63788736).

The spelling of 13644105 in words is "thirteen million, six hundred forty-four thousand, one hundred five".