12788543 has 2 divisors, whose sum is σ = 12788544. Its totient is φ = 12788542.

The previous prime is 12788527. The next prime is 12788563. The reversal of 12788543 is 34588721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12788543 - 2⁴ = 12788527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12788497 and 12788506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12788513) 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 as a sum of consecutive naturals, namely, 6394271 + 6394272.

It is an arithmetic number, because the mean of its divisors is an integer number (6394272).

Almost surely, 2^12788543 is an apocalyptic number.

12788543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12788543 is an equidigital number, since it uses as much as digits as its factorization.

12788543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 12788543 is about 3576.1072411213. The cubic root of 12788543 is about 233.8516055750.

It can be divided in two parts, 12788 and 543, that added together give a palindrome (13331).

The spelling of 12788543 in words is "twelve million, seven hundred eighty-eight thousand, five hundred forty-three".