12683261 has 2 divisors, whose sum is σ = 12683262. Its totient is φ = 12683260.

The previous prime is 12683249. The next prime is 12683263. The reversal of 12683261 is 16238621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8231161 + 4452100 = 2869^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 12683261 - 2¹⁰ = 12682237 is a prime.

Together with 12683263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12683263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6341630 + 6341631.

It is an arithmetic number, because the mean of its divisors is an integer number (6341631).

Almost surely, 2^12683261 is an apocalyptic number.

It is an amenable number.

12683261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12683261 is an equidigital number, since it uses as much as digits as its factorization.

12683261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 12683261 is about 3561.3566235355. The cubic root of 12683261 is about 233.2081067276.

The spelling of 12683261 in words is "twelve million, six hundred eighty-three thousand, two hundred sixty-one".