30450073 has 2 divisors, whose sum is σ = 30450074. Its totient is φ = 30450072.

The previous prime is 30450061. The next prime is 30450089. The reversal of 30450073 is 37005403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 3948169 = 5148^2 + 1987^2 .

It is a cyclic number.

It is not a de Polignac number, because 30450073 - 2¹³ = 30441881 is a prime.

It is not a weakly prime, because it can be changed into another prime (30450023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15225036 + 15225037.

It is an arithmetic number, because the mean of its divisors is an integer number (15225037).

Almost surely, 2^30450073 is an apocalyptic number.

It is an amenable number.

30450073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30450073 is an equidigital number, since it uses as much as digits as its factorization.

30450073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 30450073 is about 5518.1584790580. The cubic root of 30450073 is about 312.2694124025.

Adding to 30450073 its reverse (37005403), we get a palindrome (67455476).

The spelling of 30450073 in words is "thirty million, four hundred fifty thousand, seventy-three".