6109009 has 2 divisors, whose sum is σ = 6109010. Its totient is φ = 6109008.

The previous prime is 6109003. The next prime is 6109021. The reversal of 6109009 is 9009016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 1507984 = 2145^2 + 1228^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109009 - 2⁹ = 6108497 is a prime.

It is not a weakly prime, because it can be changed into another prime (6109003) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054504 + 3054505.

It is an arithmetic number, because the mean of its divisors is an integer number (3054505).

Almost surely, 2^6109009 is an apocalyptic number.

It is an amenable number.

6109009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109009 is an equidigital number, since it uses as much as digits as its factorization.

6109009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 6109009 is about 2471.6409528894. The cubic root of 6109009 is about 182.8059196355.

The spelling of 6109009 in words is "six million, one hundred nine thousand, nine".