12243249 has 24 divisors (see below), whose sum is σ = 18618600. Its totient is φ = 7741440.

The previous prime is 12243241. The next prime is 12243251. The reversal of 12243249 is 94234221.

12243249 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28224 + 12215025 = 168^2 + 3495^2 .

It is not a de Polignac number, because 12243249 - 2³ = 12243241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15537 + ... + 16305.

It is an arithmetic number, because the mean of its divisors is an integer number (775775).

Almost surely, 2^12243249 is an apocalyptic number.

It is an amenable number.

12243249 is a deficient number, since it is larger than the sum of its proper divisors (6375351).

12243249 is a wasteful number, since it uses less digits than its factorization.

12243249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12243249 is about 3499.0354385173. The cubic root of 12243249 is about 230.4794598072.

The spelling of 12243249 in words is "twelve million, two hundred forty-three thousand, two hundred forty-nine".