210300073 has 2 divisors, whose sum is σ = 210300074. Its totient is φ = 210300072.

The previous prime is 210300059. The next prime is 210300127. The reversal of 210300073 is 370003012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114318864 + 95981209 = 10692^2 + 9797^2 .

It is a cyclic number.

It is not a de Polignac number, because 210300073 - 2¹³ = 210291881 is a prime.

It is a super-2 number, since 2×210300073² = 88452241407610658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210300023) 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, 105150036 + 105150037.

It is an arithmetic number, because the mean of its divisors is an integer number (105150037).

Almost surely, 2^210300073 is an apocalyptic number.

It is an amenable number.

210300073 is a deficient number, since it is larger than the sum of its proper divisors (1).

210300073 is an equidigital number, since it uses as much as digits as its factorization.

210300073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 210300073 is about 14501.7265523799. The cubic root of 210300073 is about 594.6751733114.

Adding to 210300073 its reverse (370003012), we get a palindrome (580303085).

The spelling of 210300073 in words is "two hundred ten million, three hundred thousand, seventy-three".