12837641 has 2 divisors, whose sum is σ = 12837642. Its totient is φ = 12837640.

The previous prime is 12837637. The next prime is 12837647. The reversal of 12837641 is 14673821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 1974025 = 3296^2 + 1405^2 .

It is an emirp because it is prime and its reverse (14673821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12837641 - 2² = 12837637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12837598 and 12837607.

It is not a weakly prime, because it can be changed into another prime (12837647) 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 as a sum of consecutive naturals, namely, 6418820 + 6418821.

It is an arithmetic number, because the mean of its divisors is an integer number (6418821).

Almost surely, 2^12837641 is an apocalyptic number.

It is an amenable number.

12837641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12837641 is an equidigital number, since it uses as much as digits as its factorization.

12837641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 32.

The square root of 12837641 is about 3582.9653919624. The cubic root of 12837641 is about 234.1504924739.

The spelling of 12837641 in words is "twelve million, eight hundred thirty-seven thousand, six hundred forty-one".