12563143 has 2 divisors, whose sum is σ = 12563144. Its totient is φ = 12563142.

The previous prime is 12563141. The next prime is 12563167. The reversal of 12563143 is 34136521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12563143 - 2¹ = 12563141 is a prime.

Together with 12563141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12563141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281571 + 6281572.

It is an arithmetic number, because the mean of its divisors is an integer number (6281572).

Almost surely, 2^12563143 is an apocalyptic number.

12563143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12563143 is an equidigital number, since it uses as much as digits as its factorization.

12563143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 12563143 is about 3544.4524259750. The cubic root of 12563143 is about 232.4695639813.

Adding to 12563143 its reverse (34136521), we get a palindrome (46699664).

The spelling of 12563143 in words is "twelve million, five hundred sixty-three thousand, one hundred forty-three".