6225309 has 8 divisors (see below), whose sum is σ = 9222720. Its totient is φ = 4150188.

The previous prime is 6225299. The next prime is 6225313. The reversal of 6225309 is 9035226.

6225309 is a `hidden beast` number, since 622 + 5 + 30 + 9 = 666.

It is not a de Polignac number, because 6225309 - 2⁷ = 6225181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 230567 = 6225309 / (6 + 2 + 2 + 5 + 3 + 0 + 9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6225319) 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 in 7 ways as a sum of consecutive naturals, for example, 115257 + ... + 115310.

It is an arithmetic number, because the mean of its divisors is an integer number (1152840).

Almost surely, 2^6225309 is an apocalyptic number.

It is an amenable number.

6225309 is a deficient number, since it is larger than the sum of its proper divisors (2997411).

6225309 is a wasteful number, since it uses less digits than its factorization.

6225309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230576 (or 230570 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6225309 is about 2495.0569131785. The cubic root of 6225309 is about 183.9586883467.

The spelling of 6225309 in words is "six million, two hundred twenty-five thousand, three hundred nine".