12043845 has 48 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5631360.

The previous prime is 12043831. The next prime is 12043909. The reversal of 12043845 is 54834021.

12043845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12043845 - 2⁸ = 12043589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13936 + ... + 14774.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^12043845 is an apocalyptic number.

12043845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12043845 is a deficient number, since it is larger than the sum of its proper divisors (11543355).

12043845 is a wasteful number, since it uses less digits than its factorization.

12043845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 12043845 is about 3470.4243256409. The cubic root of 12043845 is about 229.2213429135.

Adding to 12043845 its reverse (54834021), we get a palindrome (66877866).

The spelling of 12043845 in words is "twelve million, forty-three thousand, eight hundred forty-five".