12743017 has 4 divisors (see below), whose sum is σ = 14563456. Its totient is φ = 10922580.

The previous prime is 12742993. The next prime is 12743021. The reversal of 12743017 is 71034721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71034721 = 17 ⋅4178513.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12743017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12742982 and 12743000.

It is not an unprimeable number, because it can be changed into a prime (12743317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910209 + ... + 910222.

It is an arithmetic number, because the mean of its divisors is an integer number (3640864).

Almost surely, 2^12743017 is an apocalyptic number.

It is an amenable number.

12743017 is a deficient number, since it is larger than the sum of its proper divisors (1820439).

12743017 is an equidigital number, since it uses as much as digits as its factorization.

12743017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820438.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12743017 is about 3569.7362647680. The cubic root of 12743017 is about 233.5737791240.

Adding to 12743017 its reverse (71034721), we get a palindrome (83777738).

The spelling of 12743017 in words is "twelve million, seven hundred forty-three thousand, seventeen".