12282661 has 2 divisors, whose sum is σ = 12282662. Its totient is φ = 12282660.

The previous prime is 12282659. The next prime is 12282701. The reversal of 12282661 is 16628221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 1425636 = 3295^2 + 1194^2 .

It is an emirp because it is prime and its reverse (16628221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12282661 - 2¹ = 12282659 is a prime.

It is a super-2 number, since 2×12282661² = 301727522481842, which contains 22 as substring.

Together with 12282659, 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 (12282601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6141330 + 6141331.

It is an arithmetic number, because the mean of its divisors is an integer number (6141331).

Almost surely, 2^12282661 is an apocalyptic number.

It is an amenable number.

12282661 is a deficient number, since it is larger than the sum of its proper divisors (1).

12282661 is an equidigital number, since it uses as much as digits as its factorization.

12282661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 12282661 is about 3504.6627512501. The cubic root of 12282661 is about 230.7265055290.

The spelling of 12282661 in words is "twelve million, two hundred eighty-two thousand, six hundred sixty-one".