12743441 has 4 divisors (see below), whose sum is σ = 13182900. Its totient is φ = 12303984.

The previous prime is 12743431. The next prime is 12743443. The reversal of 12743441 is 14434721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9431041 + 3312400 = 3071^2 + 1820^2 .

It is a cyclic number.

It is not a de Polignac number, because 12743441 - 2¹⁰ = 12742417 is a prime.

It is a super-3 number, since 3×12743441³ (a number of 22 digits) contains 333 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 12743441.

It is not an unprimeable number, because it can be changed into a prime (12743443) 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, 219686 + ... + 219743.

It is an arithmetic number, because the mean of its divisors is an integer number (3295725).

Almost surely, 2^12743441 is an apocalyptic number.

It is an amenable number.

12743441 is a deficient number, since it is larger than the sum of its proper divisors (439459).

12743441 is an equidigital number, since it uses as much as digits as its factorization.

12743441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439458.

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

The square root of 12743441 is about 3569.7956524149. The cubic root of 12743441 is about 233.5763696718.

It can be divided in two parts, 1274 and 3441, that multiplied together give a palindrome (4383834).

The spelling of 12743441 in words is "twelve million, seven hundred forty-three thousand, four hundred forty-one".