224185697 has 2 divisors, whose sum is σ = 224185698. Its totient is φ = 224185696.

The previous prime is 224185679. The next prime is 224185699. The reversal of 224185697 is 796581422.

It is a happy number.

Together with previous prime (224185679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219958561 + 4227136 = 14831^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 224185697 - 2¹⁴ = 224169313 is a prime.

Together with 224185699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224185699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112092848 + 112092849.

It is an arithmetic number, because the mean of its divisors is an integer number (112092849).

Almost surely, 2^224185697 is an apocalyptic number.

It is an amenable number.

224185697 is a deficient number, since it is larger than the sum of its proper divisors (1).

224185697 is an equidigital number, since it uses as much as digits as its factorization.

224185697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 224185697 is about 14972.8319632593. The cubic root of 224185697 is about 607.4855710754.

The spelling of 224185697 in words is "two hundred twenty-four million, one hundred eighty-five thousand, six hundred ninety-seven".