12273224 has 8 divisors (see below), whose sum is σ = 23012310. Its totient is φ = 6136608.

The previous prime is 12273223. The next prime is 12273229. The reversal of 12273224 is 42237221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 232324 = 3470^2 + 482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12273224.

It is not an unprimeable number, because it can be changed into a prime (12273223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767069 + ... + 767084.

Almost surely, 2^12273224 is an apocalyptic number.

It is an amenable number.

12273224 is a deficient number, since it is larger than the sum of its proper divisors (10739086).

12273224 is a wasteful number, since it uses less digits than its factorization.

12273224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534159 (or 1534155 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 12273224 is about 3503.3161433134. The cubic root of 12273224 is about 230.6673998811.

The spelling of 12273224 in words is "twelve million, two hundred seventy-three thousand, two hundred twenty-four".