6225391 has 2 divisors, whose sum is σ = 6225392. Its totient is φ = 6225390.

The previous prime is 6225379. The next prime is 6225409. The reversal of 6225391 is 1935226.

6225391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6225391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6223391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112695 + 3112696.

It is an arithmetic number, because the mean of its divisors is an integer number (3112696).

Almost surely, 2^6225391 is an apocalyptic number.

6225391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6225391 is an equidigital number, since it uses as much as digits as its factorization.

6225391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 28.

The square root of 6225391 is about 2495.0733456153. The cubic root of 6225391 is about 183.9594960467.

The spelling of 6225391 in words is "six million, two hundred twenty-five thousand, three hundred ninety-one".