12543266 has 8 divisors (see below), whose sum is σ = 19215360. Its totient is φ = 6138148.

The previous prime is 12543241. The next prime is 12543269. The reversal of 12543266 is 66234521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12543269) 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, 66626 + ... + 66813.

It is an arithmetic number, because the mean of its divisors is an integer number (2401920).

Almost surely, 2^12543266 is an apocalyptic number.

12543266 is a deficient number, since it is larger than the sum of its proper divisors (6672094).

12543266 is a wasteful number, since it uses less digits than its factorization.

12543266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133488.

The product of its digits is 8640, while the sum is 29.

The square root of 12543266 is about 3541.6473568101. The cubic root of 12543266 is about 232.3468973146.

Adding to 12543266 its reverse (66234521), we get a palindrome (78777787).

The spelling of 12543266 in words is "twelve million, five hundred forty-three thousand, two hundred sixty-six".