12499143 has 16 divisors (see below), whose sum is σ = 17617920. Its totient is φ = 7866144.

The previous prime is 12499127. The next prime is 12499181. The reversal of 12499143 is 34199421.

12499143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12499143 - 2⁴ = 12499127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (1101120).

Almost surely, 2^12499143 is an apocalyptic number.

12499143 is a deficient number, since it is larger than the sum of its proper divisors (5118777).

12499143 is a wasteful number, since it uses less digits than its factorization.

12499143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398.

The product of its digits is 7776, while the sum is 33.

The square root of 12499143 is about 3535.4127057530. The cubic root of 12499143 is about 232.0741377706.

The spelling of 12499143 in words is "twelve million, four hundred ninety-nine thousand, one hundred forty-three".