12243225 has 12 divisors (see below), whose sum is σ = 20242256. Its totient is φ = 6529680.

The previous prime is 12243221. The next prime is 12243227. The reversal of 12243225 is 52234221.

12243225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12243225 - 2² = 12243221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81547 + ... + 81696.

Almost surely, 2^12243225 is an apocalyptic number.

12243225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12243225 is a deficient number, since it is larger than the sum of its proper divisors (7999031).

12243225 is a wasteful number, since it uses less digits than its factorization.

12243225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163256 (or 163251 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 12243225 is about 3499.0320089991. The cubic root of 12243225 is about 230.4793092069.

Adding to 12243225 its reverse (52234221), we get a palindrome (64477446).

The spelling of 12243225 in words is "twelve million, two hundred forty-three thousand, two hundred twenty-five".