12744071 has 4 divisors (see below), whose sum is σ = 13054944. Its totient is φ = 12433200.

The previous prime is 12744049. The next prime is 12744077. The reversal of 12744071 is 17044721.

12744071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17044721 = 29 ⋅587749.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12744071 is a prime.

It is a super-2 number, since 2×12744071² = 324822691306082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12744071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155375 + ... + 155456.

It is an arithmetic number, because the mean of its divisors is an integer number (3263736).

Almost surely, 2^12744071 is an apocalyptic number.

12744071 is a deficient number, since it is larger than the sum of its proper divisors (310873).

12744071 is an equidigital number, since it uses as much as digits as its factorization.

12744071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310872.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 12744071 is about 3569.8838916693. The cubic root of 12744071 is about 233.5802187287.

Adding to 12744071 its reverse (17044721), we get a palindrome (29788792).

The spelling of 12744071 in words is "twelve million, seven hundred forty-four thousand, seventy-one".