12107885 has 4 divisors (see below), whose sum is σ = 14529468. Its totient is φ = 9686304.

The previous prime is 12107881. The next prime is 12107891. The reversal of 12107885 is 58870121.

It is a happy number.

12107885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 2553604 = 3091^2 + 1598^2 .

It is a cyclic number.

It is not a de Polignac number, because 12107885 - 2² = 12107881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12107881) 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 3 ways as a sum of consecutive naturals, for example, 1210784 + ... + 1210793.

It is an arithmetic number, because the mean of its divisors is an integer number (3632367).

Almost surely, 2^12107885 is an apocalyptic number.

It is an amenable number.

12107885 is a deficient number, since it is larger than the sum of its proper divisors (2421583).

12107885 is an equidigital number, since it uses as much as digits as its factorization.

12107885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421582.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 12107885 is about 3479.6386306627. The cubic root of 12107885 is about 229.6268998195.

The spelling of 12107885 in words is "twelve million, one hundred seven thousand, eight hundred eighty-five".