12208845 has 32 divisors (see below), whose sum is σ = 21677184. Its totient is φ = 5817600.

The previous prime is 12208843. The next prime is 12208871. The reversal of 12208845 is 54880221.

It is not a de Polignac number, because 12208845 - 2¹ = 12208843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208841) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9459 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (677412).

Almost surely, 2^12208845 is an apocalyptic number.

12208845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12208845 is a deficient number, since it is larger than the sum of its proper divisors (9468339).

12208845 is a wasteful number, since it uses less digits than its factorization.

12208845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 12208845 is about 3494.1157679734. The cubic root of 12208845 is about 230.2633718970.

The spelling of 12208845 in words is "twelve million, two hundred eight thousand, eight hundred forty-five".