12153224 has 8 divisors (see below), whose sum is σ = 22787310. Its totient is φ = 6076608.

The previous prime is 12153221. The next prime is 12153247. The reversal of 12153224 is 42235121.

It can be written as a sum of positive squares in only one way, i.e., 12124324 + 28900 = 3482^2 + 170^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12153196 and 12153205.

It is not an unprimeable number, because it can be changed into a prime (12153221) 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, 759569 + ... + 759584.

Almost surely, 2^12153224 is an apocalyptic number.

It is an amenable number.

12153224 is a deficient number, since it is larger than the sum of its proper divisors (10634086).

12153224 is a wasteful number, since it uses less digits than its factorization.

12153224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519159 (or 1519155 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 12153224 is about 3486.1474438124. The cubic root of 12153224 is about 229.9131619248.

Adding to 12153224 its reverse (42235121), we get a palindrome (54388345).

It can be divided in two parts, 12153 and 224, that multiplied together give a palindrome (2722272).

The spelling of 12153224 in words is "twelve million, one hundred fifty-three thousand, two hundred twenty-four".