218030573 has 2 divisors, whose sum is σ = 218030574. Its totient is φ = 218030572.

The previous prime is 218030537. The next prime is 218030591. The reversal of 218030573 is 375030812.

Together with previous prime (218030537) 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., 160224964 + 57805609 = 12658^2 + 7603^2 .

It is a cyclic number.

It is not a de Polignac number, because 218030573 - 2²⁰ = 216981997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218030173) 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, 109015286 + 109015287.

It is an arithmetic number, because the mean of its divisors is an integer number (109015287).

Almost surely, 2^218030573 is an apocalyptic number.

It is an amenable number.

218030573 is a deficient number, since it is larger than the sum of its proper divisors (1).

218030573 is an equidigital number, since it uses as much as digits as its factorization.

218030573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 218030573 is about 14765.8583563571. The cubic root of 218030573 is about 601.8742990934.

The spelling of 218030573 in words is "two hundred eighteen million, thirty thousand, five hundred seventy-three".