13608111 has 16 divisors (see below), whose sum is σ = 20655360. Its totient is φ = 7888320.

The previous prime is 13608107. The next prime is 13608113. The reversal of 13608111 is 11180631.

It is not a de Polignac number, because 13608111 - 2² = 13608107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13608113) 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, 8206 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (1290960).

Almost surely, 2^13608111 is an apocalyptic number.

13608111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13608111 is a deficient number, since it is larger than the sum of its proper divisors (7047249).

13608111 is a wasteful number, since it uses less digits than its factorization.

13608111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 13608111 is about 3688.9173208409. The cubic root of 13608111 is about 238.7440816127.

Adding to 13608111 its reverse (11180631), we get a palindrome (24788742).

The spelling of 13608111 in words is "thirteen million, six hundred eight thousand, one hundred eleven".