12049845 has 8 divisors (see below), whose sum is σ = 19279776. Its totient is φ = 6426576.

The previous prime is 12049831. The next prime is 12049853. The reversal of 12049845 is 54894021.

12049845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12049845 - 2⁷ = 12049717 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401647 + ... + 401676.

It is an arithmetic number, because the mean of its divisors is an integer number (2409972).

Almost surely, 2^12049845 is an apocalyptic number.

12049845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12049845 is a deficient number, since it is larger than the sum of its proper divisors (7229931).

12049845 is an equidigital number, since it uses as much as digits as its factorization.

12049845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803331.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12049845 is about 3471.2886656111. The cubic root of 12049845 is about 229.2594010733.

The spelling of 12049845 in words is "twelve million, forty-nine thousand, eight hundred forty-five".