30530849 has 2 divisors, whose sum is σ = 30530850. Its totient is φ = 30530848.

The previous prime is 30530839. The next prime is 30530873. The reversal of 30530849 is 94803503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26450449 + 4080400 = 5143^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 30530849 - 2²⁰ = 29482273 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 (30530839) 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, 15265424 + 15265425.

It is an arithmetic number, because the mean of its divisors is an integer number (15265425).

Almost surely, 2^30530849 is an apocalyptic number.

It is an amenable number.

30530849 is a deficient number, since it is larger than the sum of its proper divisors (1).

30530849 is an equidigital number, since it uses as much as digits as its factorization.

30530849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30530849 is about 5525.4727399563. The cubic root of 30530849 is about 312.5452913555.

The spelling of 30530849 in words is "thirty million, five hundred thirty thousand, eight hundred forty-nine".