12205854 has 12 divisors (see below), whose sum is σ = 26446056. Its totient is φ = 4068612.

The previous prime is 12205849. The next prime is 12205867. The reversal of 12205854 is 45850221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339034 + ... + 339069.

It is an arithmetic number, because the mean of its divisors is an integer number (2203838).

Almost surely, 2^12205854 is an apocalyptic number.

12205854 is an abundant number, since it is smaller than the sum of its proper divisors (14240202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12205854 is a wasteful number, since it uses less digits than its factorization.

12205854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678111 (or 678108 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12205854 is about 3493.6877364756. The cubic root of 12205854 is about 230.2445665692.

The spelling of 12205854 in words is "twelve million, two hundred five thousand, eight hundred fifty-four".