12543230 has 32 divisors (see below), whose sum is σ = 27164160. Its totient is φ = 4073760.

The previous prime is 12543199. The next prime is 12543233. The reversal of 12543230 is 3234521.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3386 + ... + 6045.

It is an arithmetic number, because the mean of its divisors is an integer number (848880).

Almost surely, 2^12543230 is an apocalyptic number.

12543230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12543230 is an abundant number, since it is smaller than the sum of its proper divisors (14620930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12543230 is a wasteful number, since it uses less digits than its factorization.

12543230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 12543230 is about 3541.6422744258. The cubic root of 12543230 is about 232.3466750308.

Adding to 12543230 its reverse (3234521), we get a palindrome (15777751).

The spelling of 12543230 in words is "twelve million, five hundred forty-three thousand, two hundred thirty".