12968749 has 2 divisors, whose sum is σ = 12968750. Its totient is φ = 12968748.

The previous prime is 12968743. The next prime is 12968777. The reversal of 12968749 is 94786921.

12968749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10017225 + 2951524 = 3165^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 12968749 - 2¹³ = 12960557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12968699 and 12968708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12968743) 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, 6484374 + 6484375.

It is an arithmetic number, because the mean of its divisors is an integer number (6484375).

Almost surely, 2^12968749 is an apocalyptic number.

It is an amenable number.

12968749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12968749 is an equidigital number, since it uses as much as digits as its factorization.

12968749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 12968749 is about 3601.2149338800. The cubic root of 12968749 is about 234.9449033351.

The spelling of 12968749 in words is "twelve million, nine hundred sixty-eight thousand, seven hundred forty-nine".