225321347 has 2 divisors, whose sum is σ = 225321348. Its totient is φ = 225321346.

The previous prime is 225321331. The next prime is 225321359. The reversal of 225321347 is 743123522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225321347 - 2⁴ = 225321331 is a prime.

It is not a weakly prime, because it can be changed into another prime (225321307) 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, 112660673 + 112660674.

It is an arithmetic number, because the mean of its divisors is an integer number (112660674).

Almost surely, 2^225321347 is an apocalyptic number.

225321347 is a deficient number, since it is larger than the sum of its proper divisors (1).

225321347 is an equidigital number, since it uses as much as digits as its factorization.

225321347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 225321347 is about 15010.7077448067. The cubic root of 225321347 is about 608.5096169833.

Adding to 225321347 its reverse (743123522), we get a palindrome (968444869).

The spelling of 225321347 in words is "two hundred twenty-five million, three hundred twenty-one thousand, three hundred forty-seven".