12153223 has 4 divisors (see below), whose sum is σ = 12681648. Its totient is φ = 11624800.

The previous prime is 12153221. The next prime is 12153247. The reversal of 12153223 is 32235121.

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

It is a cyclic number.

It is not a de Polignac number, because 12153223 - 2¹ = 12153221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12153223.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264178 + ... + 264223.

It is an arithmetic number, because the mean of its divisors is an integer number (3170412).

Almost surely, 2^12153223 is an apocalyptic number.

12153223 is a deficient number, since it is larger than the sum of its proper divisors (528425).

12153223 is an equidigital number, since it uses as much as digits as its factorization.

12153223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528424.

The product of its digits is 360, while the sum is 19.

The square root of 12153223 is about 3486.1473003876. The cubic root of 12153223 is about 229.9131556189.

Adding to 12153223 its reverse (32235121), we get a palindrome (44388344).

The spelling of 12153223 in words is "twelve million, one hundred fifty-three thousand, two hundred twenty-three".