12681244 has 6 divisors (see below), whose sum is σ = 22192184. Its totient is φ = 6340620.

The previous prime is 12681233. The next prime is 12681247. The reversal of 12681244 is 44218621.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585152 + ... + 1585159.

Almost surely, 2^12681244 is an apocalyptic number.

It is an amenable number.

12681244 is a deficient number, since it is larger than the sum of its proper divisors (9510940).

12681244 is a wasteful number, since it uses less digits than its factorization.

12681244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170315 (or 3170313 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 12681244 is about 3561.0734336714. The cubic root of 12681244 is about 233.1957438269.

Adding to 12681244 its reverse (44218621), we get a palindrome (56899865).

The spelling of 12681244 in words is "twelve million, six hundred eighty-one thousand, two hundred forty-four".