12743236 has 36 divisors (see below), whose sum is σ = 24835356. Its totient is φ = 5716480.

The previous prime is 12743231. The next prime is 12743257. The reversal of 12743236 is 63234721.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 11628100 = 1056^2 + 3410^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12743231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54576 + ... + 54808.

It is an arithmetic number, because the mean of its divisors is an integer number (689871).

Almost surely, 2^12743236 is an apocalyptic number.

It is an amenable number.

12743236 is a deficient number, since it is larger than the sum of its proper divisors (12092120).

12743236 is a wasteful number, since it uses less digits than its factorization.

12743236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 359 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 12743236 is about 3569.7669391712. The cubic root of 12743236 is about 233.5751171735.

Adding to 12743236 its reverse (63234721), we get a palindrome (75977957).

The spelling of 12743236 in words is "twelve million, seven hundred forty-three thousand, two hundred thirty-six".