12113665 has 8 divisors (see below), whose sum is σ = 14741568. Its totient is φ = 9554160.

The previous prime is 12113657. The next prime is 12113669. The reversal of 12113665 is 56631121.

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

It is not a de Polignac number, because 12113665 - 2³ = 12113657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16707 + ... + 17416.

It is an arithmetic number, because the mean of its divisors is an integer number (1842696).

Almost surely, 2^12113665 is an apocalyptic number.

It is an amenable number.

12113665 is a deficient number, since it is larger than the sum of its proper divisors (2627903).

12113665 is an equidigital number, since it uses as much as digits as its factorization.

12113665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34199.

The product of its digits is 1080, while the sum is 25.

The square root of 12113665 is about 3480.4690775814. The cubic root of 12113665 is about 229.6634333770.

Adding to 12113665 its reverse (56631121), we get a palindrome (68744786).

The spelling of 12113665 in words is "twelve million, one hundred thirteen thousand, six hundred sixty-five".