6309109 has 2 divisors, whose sum is σ = 6309110. Its totient is φ = 6309108.

The previous prime is 6309103. The next prime is 6309113. The reversal of 6309109 is 9019036.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6265009 + 44100 = 2503^2 + 210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6309109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6309103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154554 + 3154555.

It is an arithmetic number, because the mean of its divisors is an integer number (3154555).

Almost surely, 2^6309109 is an apocalyptic number.

It is an amenable number.

6309109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6309109 is an equidigital number, since it uses as much as digits as its factorization.

6309109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 6309109 is about 2511.7939804052. The cubic root of 6309109 is about 184.7804456518.

The spelling of 6309109 in words is "six million, three hundred nine thousand, one hundred nine".