12744045 has 24 divisors (see below), whose sum is σ = 22230936. Its totient is φ = 6753408.

The previous prime is 12744019. The next prime is 12744049. The reversal of 12744045 is 54044721.

It can be written as a sum of positive squares in 4 ways, for example, as 820836 + 11923209 = 906^2 + 3453^2 .

It is not a de Polignac number, because 12744045 - 2⁷ = 12743917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744049) 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 23 ways as a sum of consecutive naturals, for example, 6967 + ... + 8603.

It is an arithmetic number, because the mean of its divisors is an integer number (926289).

Almost surely, 2^12744045 is an apocalyptic number.

12744045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12744045 is a deficient number, since it is larger than the sum of its proper divisors (9486891).

12744045 is a wasteful number, since it uses less digits than its factorization.

12744045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 12744045 is about 3569.8802500924. The cubic root of 12744045 is about 233.5800598812.

Adding to 12744045 its reverse (54044721), we get a palindrome (66788766).

The spelling of 12744045 in words is "twelve million, seven hundred forty-four thousand, forty-five".