12533143 has 8 divisors (see below), whose sum is σ = 14463488. Its totient is φ = 10637784.

The previous prime is 12533123. The next prime is 12533149. The reversal of 12533143 is 34133521.

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

It is a cyclic number.

It is not a de Polignac number, because 12533143 - 2⁵ = 12533111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533149) 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 7 ways as a sum of consecutive naturals, for example, 7971 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (1807936).

Almost surely, 2^12533143 is an apocalyptic number.

12533143 is a deficient number, since it is larger than the sum of its proper divisors (1930345).

12533143 is a wasteful number, since it uses less digits than its factorization.

12533143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493.

The product of its digits is 1080, while the sum is 22.

The square root of 12533143 is about 3540.2179311449. The cubic root of 12533143 is about 232.2843755689.

Adding to 12533143 its reverse (34133521), we get a palindrome (46666664).

The spelling of 12533143 in words is "twelve million, five hundred thirty-three thousand, one hundred forty-three".