12708143 has 4 divisors (see below), whose sum is σ = 14523600. Its totient is φ = 10892688.

The previous prime is 12708139. The next prime is 12708149. The reversal of 12708143 is 34180721.

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 12708143 - 2² = 12708139 is a prime.

It is a super-2 number, since 2×12708143² = 322993797016898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12708149) 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, 907718 + ... + 907731.

It is an arithmetic number, because the mean of its divisors is an integer number (3630900).

Almost surely, 2^12708143 is an apocalyptic number.

12708143 is a deficient number, since it is larger than the sum of its proper divisors (1815457).

12708143 is an equidigital number, since it uses as much as digits as its factorization.

12708143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815456.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12708143 is about 3564.8482436143. The cubic root of 12708143 is about 233.3605095331.

Adding to 12708143 its reverse (34180721), we get a palindrome (46888864).

The spelling of 12708143 in words is "twelve million, seven hundred eight thousand, one hundred forty-three".