219025073 has 2 divisors, whose sum is σ = 219025074. Its totient is φ = 219025072.

The previous prime is 219025069. The next prime is 219025111. The reversal of 219025073 is 370520912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198021184 + 21003889 = 14072^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 219025073 - 2² = 219025069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (219025043) 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, 109512536 + 109512537.

It is an arithmetic number, because the mean of its divisors is an integer number (109512537).

Almost surely, 2^219025073 is an apocalyptic number.

It is an amenable number.

219025073 is a deficient number, since it is larger than the sum of its proper divisors (1).

219025073 is an equidigital number, since it uses as much as digits as its factorization.

219025073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 219025073 is about 14799.4957008676. The cubic root of 219025073 is about 602.7880183750.

Adding to 219025073 its reverse (370520912), we get a palindrome (589545985).

The spelling of 219025073 in words is "two hundred nineteen million, twenty-five thousand, seventy-three".