225229117 has 2 divisors, whose sum is σ = 225229118. Its totient is φ = 225229116.

The previous prime is 225229093. The next prime is 225229129. The reversal of 225229117 is 711922522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168844036 + 56385081 = 12994^2 + 7509^2 .

It is a cyclic number.

It is not a de Polignac number, because 225229117 - 2¹⁹ = 224704829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225229157) 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 as a sum of consecutive naturals, namely, 112614558 + 112614559.

It is an arithmetic number, because the mean of its divisors is an integer number (112614559).

Almost surely, 2^225229117 is an apocalyptic number.

It is an amenable number.

225229117 is a deficient number, since it is larger than the sum of its proper divisors (1).

225229117 is an equidigital number, since it uses as much as digits as its factorization.

225229117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 225229117 is about 15007.6352900782. The cubic root of 225229117 is about 608.4265792804.

The spelling of 225229117 in words is "two hundred twenty-five million, two hundred twenty-nine thousand, one hundred seventeen".