30518029 has 2 divisors, whose sum is σ = 30518030. Its totient is φ = 30518028.

The previous prime is 30518017. The next prime is 30518039. The reversal of 30518029 is 92081503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28068804 + 2449225 = 5298^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 30518029 - 2⁵ = 30517997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30517988 and 30518006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30518039) 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, 15259014 + 15259015.

It is an arithmetic number, because the mean of its divisors is an integer number (15259015).

Almost surely, 2^30518029 is an apocalyptic number.

It is an amenable number.

30518029 is a deficient number, since it is larger than the sum of its proper divisors (1).

30518029 is an equidigital number, since it uses as much as digits as its factorization.

30518029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 30518029 is about 5524.3125364157. The cubic root of 30518029 is about 312.5015389791.

The spelling of 30518029 in words is "thirty million, five hundred eighteen thousand, twenty-nine".