12744481 has 8 divisors (see below), whose sum is σ = 13142304. Its totient is φ = 12350880.

The previous prime is 12744463. The next prime is 12744527. The reversal of 12744481 is 18444721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12744481 - 2⁷ = 12744353 is a prime.

It is a super-2 number, since 2×12744481² = 324843591918722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12744581) 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 7 ways as a sum of consecutive naturals, for example, 5730 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (1642788).

Almost surely, 2^12744481 is an apocalyptic number.

It is an amenable number.

12744481 is a deficient number, since it is larger than the sum of its proper divisors (397823).

12744481 is a wasteful number, since it uses less digits than its factorization.

12744481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its digits is 7168, while the sum is 31.

The square root of 12744481 is about 3569.9413160443. The cubic root of 12744481 is about 233.5827236023.

It can be divided in two parts, 12744 and 481, that added together give a square (13225 = 115²).

The spelling of 12744481 in words is "twelve million, seven hundred forty-four thousand, four hundred eighty-one".