12274445 has 4 divisors (see below), whose sum is σ = 14729340. Its totient is φ = 9819552.

The previous prime is 12274421. The next prime is 12274447. The reversal of 12274445 is 54447221.

12274445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8514724 + 3759721 = 2918^2 + 1939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12274445 - 2⁸ = 12274189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12274447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1227440 + ... + 1227449.

It is an arithmetic number, because the mean of its divisors is an integer number (3682335).

Almost surely, 2^12274445 is an apocalyptic number.

It is an amenable number.

12274445 is a deficient number, since it is larger than the sum of its proper divisors (2454895).

12274445 is an equidigital number, since it uses as much as digits as its factorization.

12274445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454894.

The product of its digits is 8960, while the sum is 29.

The square root of 12274445 is about 3503.4904024415. The cubic root of 12274445 is about 230.6750489323.

The spelling of 12274445 in words is "twelve million, two hundred seventy-four thousand, four hundred forty-five".