12861743 has 2 divisors, whose sum is σ = 12861744. Its totient is φ = 12861742.

The previous prime is 12861731. The next prime is 12861767. The reversal of 12861743 is 34716821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12861743 - 2¹⁶ = 12796207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12861143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430871 + 6430872.

It is an arithmetic number, because the mean of its divisors is an integer number (6430872).

Almost surely, 2^12861743 is an apocalyptic number.

12861743 is a deficient number, since it is larger than the sum of its proper divisors (1).

12861743 is an equidigital number, since it uses as much as digits as its factorization.

12861743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 12861743 is about 3586.3272299108. The cubic root of 12861743 is about 234.2969359693.

The spelling of 12861743 in words is "twelve million, eight hundred sixty-one thousand, seven hundred forty-three".