12984149 has 2 divisors, whose sum is σ = 12984150. Its totient is φ = 12984148.

The previous prime is 12984113. The next prime is 12984157. The reversal of 12984149 is 94148921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10195249 + 2788900 = 3193^2 + 1670^2 .

It is an emirp because it is prime and its reverse (94148921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12984149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12984649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6492074 + 6492075.

It is an arithmetic number, because the mean of its divisors is an integer number (6492075).

Almost surely, 2^12984149 is an apocalyptic number.

It is an amenable number.

12984149 is a deficient number, since it is larger than the sum of its proper divisors (1).

12984149 is an equidigital number, since it uses as much as digits as its factorization.

12984149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 12984149 is about 3603.3524668009. The cubic root of 12984149 is about 235.0378632216.

The spelling of 12984149 in words is "twelve million, nine hundred eighty-four thousand, one hundred forty-nine".