12206243 has 6 divisors (see below), whose sum is σ = 14199156. Its totient is φ = 10462452.

The previous prime is 12206209. The next prime is 12206269. The reversal of 12206243 is 34260221.

It is not a de Polignac number, because 12206243 - 2⁶ = 12206179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12206203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124505 + ... + 124602.

It is an arithmetic number, because the mean of its divisors is an integer number (2366526).

Almost surely, 2^12206243 is an apocalyptic number.

12206243 is a deficient number, since it is larger than the sum of its proper divisors (1992913).

12206243 is an equidigital number, since it uses as much as digits as its factorization.

12206243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249121 (or 249114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12206243 is about 3493.7434078650. The cubic root of 12206243 is about 230.2470125044.

Adding to 12206243 its reverse (34260221), we get a palindrome (46466464).

The spelling of 12206243 in words is "twelve million, two hundred six thousand, two hundred forty-three".