12165224 has 8 divisors (see below), whose sum is σ = 22809810. Its totient is φ = 6082608.

The previous prime is 12165221. The next prime is 12165277. The reversal of 12165224 is 42256121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 3928324 = 2870^2 + 1982^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12165224.

It is not an unprimeable number, because it can be changed into a prime (12165221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760319 + ... + 760334.

Almost surely, 2^12165224 is an apocalyptic number.

It is an amenable number.

12165224 is a deficient number, since it is larger than the sum of its proper divisors (10644586).

12165224 is a wasteful number, since it uses less digits than its factorization.

12165224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520659 (or 1520655 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 12165224 is about 3487.8681167728. The cubic root of 12165224 is about 229.9888085292.

The spelling of 12165224 in words is "twelve million, one hundred sixty-five thousand, two hundred twenty-four".