225934817 has 2 divisors, whose sum is σ = 225934818. Its totient is φ = 225934816.

The previous prime is 225934739. The next prime is 225934837. The reversal of 225934817 is 718439522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186295201 + 39639616 = 13649^2 + 6296^2 .

It is a cyclic number.

It is not a de Polignac number, because 225934817 - 2⁸ = 225934561 is a prime.

It is not a weakly prime, because it can be changed into another prime (225934837) 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, 112967408 + 112967409.

It is an arithmetic number, because the mean of its divisors is an integer number (112967409).

Almost surely, 2^225934817 is an apocalyptic number.

It is an amenable number.

225934817 is a deficient number, since it is larger than the sum of its proper divisors (1).

225934817 is an equidigital number, since it uses as much as digits as its factorization.

225934817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 225934817 is about 15031.1282676983. The cubic root of 225934817 is about 609.0613683986.

The spelling of 225934817 in words is "two hundred twenty-five million, nine hundred thirty-four thousand, eight hundred seventeen".