30300073 has 2 divisors, whose sum is σ = 30300074. Its totient is φ = 30300072.

The previous prime is 30299999. The next prime is 30300091. The reversal of 30300073 is 37000303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29680704 + 619369 = 5448^2 + 787^2 .

It is an emirp because it is prime and its reverse (37000303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30300073 - 2⁹ = 30299561 is a prime.

It is not a weakly prime, because it can be changed into another prime (30300773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150036 + 15150037.

It is an arithmetic number, because the mean of its divisors is an integer number (15150037).

Almost surely, 2^30300073 is an apocalyptic number.

It is an amenable number.

30300073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30300073 is an equidigital number, since it uses as much as digits as its factorization.

30300073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 16.

The square root of 30300073 is about 5504.5502086910. The cubic root of 30300073 is about 311.7558117015.

Adding to 30300073 its reverse (37000303), we get a palindrome (67300376).

The spelling of 30300073 in words is "thirty million, three hundred thousand, seventy-three".