12273205 has 8 divisors (see below), whose sum is σ = 16831872. Its totient is φ = 8415888.

The previous prime is 12273199. The next prime is 12273223. The reversal of 12273205 is 50237221.

12273205 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 a cyclic number.

It is not a de Polignac number, because 12273205 - 2⁷ = 12273077 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

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 7 ways as a sum of consecutive naturals, for example, 175297 + ... + 175366.

It is an arithmetic number, because the mean of its divisors is an integer number (2103984).

Almost surely, 2^12273205 is an apocalyptic number.

It is an amenable number.

12273205 is a deficient number, since it is larger than the sum of its proper divisors (4558667).

12273205 is an equidigital number, since it uses as much as digits as its factorization.

12273205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350675.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12273205 is about 3503.3134315959. The cubic root of 12273205 is about 230.6672808501.

The spelling of 12273205 in words is "twelve million, two hundred seventy-three thousand, two hundred five".