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222247 is a prime number
BaseRepresentation
bin110110010000100111
3102021212101
4312100213
524102442
64432531
71613644
oct662047
9367771
10222247
11141a83
12a8747
137a20c
145adcb
1545cb7
hex36427

222247 has 2 divisors, whose sum is σ = 222248. Its totient is φ = 222246.

The previous prime is 222199. The next prime is 222269. The reversal of 222247 is 742222.

222247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222247 - 215 = 189479 is a prime.

It is a d-powerful number, because it can be written as 27 + 29 + 213 + 217 + 48 + 75 .

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111123 + 111124.

It is an arithmetic number, because the mean of its divisors is an integer number (111124).

2222247 is an apocalyptic number.

222247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222247 is an equidigital number, since it uses as much as digits as its factorization.

222247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 448, while the sum is 19.

The square root of 222247 is about 471.4308008605. The cubic root of 222247 is about 60.5729375546.

Adding to 222247 its reverse (742222), we get a palindrome (964469).

The spelling of 222247 in words is "two hundred twenty-two thousand, two hundred forty-seven", and thus it is an iban number.