12682249 has 4 divisors (see below), whose sum is σ = 12737860. Its totient is φ = 12626640.

The previous prime is 12682247. The next prime is 12682261. The reversal of 12682249 is 94228621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11971600 + 710649 = 3460^2 + 843^2 .

It is a cyclic number.

It is not a de Polignac number, because 12682249 - 2¹ = 12682247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12682247) 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 in 3 ways as a sum of consecutive naturals, for example, 27462 + ... + 27919.

It is an arithmetic number, because the mean of its divisors is an integer number (3184465).

Almost surely, 2^12682249 is an apocalyptic number.

It is an amenable number.

12682249 is a deficient number, since it is larger than the sum of its proper divisors (55611).

12682249 is an equidigital number, since it uses as much as digits as its factorization.

12682249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55610.

The product of its digits is 13824, while the sum is 34.

The square root of 12682249 is about 3561.2145400130. The cubic root of 12682249 is about 233.2019039884.

The spelling of 12682249 in words is "twelve million, six hundred eighty-two thousand, two hundred forty-nine".