12282749 has 2 divisors, whose sum is σ = 12282750. Its totient is φ = 12282748.

The previous prime is 12282737. The next prime is 12282769. The reversal of 12282749 is 94728221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10272025 + 2010724 = 3205^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 12282749 - 2⁴ = 12282733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12282719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6141374 + 6141375.

It is an arithmetic number, because the mean of its divisors is an integer number (6141375).

Almost surely, 2^12282749 is an apocalyptic number.

It is an amenable number.

12282749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12282749 is an equidigital number, since it uses as much as digits as its factorization.

12282749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 12282749 is about 3504.6753059306. The cubic root of 12282749 is about 230.7270565465.

It can be divided in two parts, 12282 and 749, that added together give a palindrome (13031).

The spelling of 12282749 in words is "twelve million, two hundred eighty-two thousand, seven hundred forty-nine".