12744261 has 6 divisors (see below), whose sum is σ = 18408390. Its totient is φ = 8496168.

The previous prime is 12744247. The next prime is 12744283. The reversal of 12744261 is 16244721.

It can be written as a sum of positive squares in only one way, i.e., 11492100 + 1252161 = 3390^2 + 1119^2 .

It is not a de Polignac number, because 12744261 - 2⁵ = 12744229 is a prime.

It is a super-2 number, since 2×12744261² = 324832376872242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744241) 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 5 ways as a sum of consecutive naturals, for example, 708006 + ... + 708023.

It is an arithmetic number, because the mean of its divisors is an integer number (3068065).

Almost surely, 2^12744261 is an apocalyptic number.

It is an amenable number.

12744261 is a deficient number, since it is larger than the sum of its proper divisors (5664129).

12744261 is a wasteful number, since it uses less digits than its factorization.

12744261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416035 (or 1416032 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 12744261 is about 3569.9105030799. The cubic root of 12744261 is about 233.5813795304.

Adding to 12744261 its reverse (16244721), we get a palindrome (28988982).

The spelling of 12744261 in words is "twelve million, seven hundred forty-four thousand, two hundred sixty-one".