12743144 has 16 divisors (see below), whose sum is σ = 24286020. Its totient is φ = 6266880.

The previous prime is 12743141. The next prime is 12743147. The reversal of 12743144 is 44134721.

12743144 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (12743141) and next prime (12743147).

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 702244 = 3470^2 + 838^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12743141) 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, 12569 + ... + 13544.

Almost surely, 2^12743144 is an apocalyptic number.

It is an amenable number.

12743144 is a deficient number, since it is larger than the sum of its proper divisors (11542876).

12743144 is a wasteful number, since it uses less digits than its factorization.

12743144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26180 (or 26176 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 12743144 is about 3569.7540531527. The cubic root of 12743144 is about 233.5745550724.

Adding to 12743144 its reverse (44134721), we get a palindrome (56877865).

The spelling of 12743144 in words is "twelve million, seven hundred forty-three thousand, one hundred forty-four".