8149109 has 2 divisors, whose sum is σ = 8149110. Its totient is φ = 8149108.

The previous prime is 8149079. The next prime is 8149111. The reversal of 8149109 is 9019418.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 253009 = 2810^2 + 503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8149109 is a prime.

Together with 8149111, 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 (8149129) 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, 4074554 + 4074555.

It is an arithmetic number, because the mean of its divisors is an integer number (4074555).

Almost surely, 2^8149109 is an apocalyptic number.

It is an amenable number.

8149109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8149109 is an equidigital number, since it uses as much as digits as its factorization.

8149109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 8149109 is about 2854.6644286150. The cubic root of 8149109 is about 201.2349339955.

The spelling of 8149109 in words is "eight million, one hundred forty-nine thousand, one hundred nine".