12744553 has 8 divisors (see below), whose sum is σ = 13336128. Its totient is φ = 12156144.

The previous prime is 12744527. The next prime is 12744569. The reversal of 12744553 is 35544721.

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

It is a de Polignac number, because none of the positive numbers 2^k-12744553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12744583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12075 + ... + 13087.

It is an arithmetic number, because the mean of its divisors is an integer number (1667016).

Almost surely, 2^12744553 is an apocalyptic number.

It is an amenable number.

12744553 is a deficient number, since it is larger than the sum of its proper divisors (591575).

12744553 is a wasteful number, since it uses less digits than its factorization.

12744553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583.

The product of its digits is 16800, while the sum is 31.

The square root of 12744553 is about 3569.9514002294. The cubic root of 12744553 is about 233.5831634770.

The spelling of 12744553 in words is "twelve million, seven hundred forty-four thousand, five hundred fifty-three".