30517013 has 2 divisors, whose sum is σ = 30517014. Its totient is φ = 30517012.

The previous prime is 30517001. The next prime is 30517037. The reversal of 30517013 is 31071503.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21743569 + 8773444 = 4663^2 + 2962^2 .

It is a cyclic number.

It is not a de Polignac number, because 30517013 - 2⁸ = 30516757 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30517043) 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, 15258506 + 15258507.

It is an arithmetic number, because the mean of its divisors is an integer number (15258507).

Almost surely, 2^30517013 is an apocalyptic number.

It is an amenable number.

30517013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30517013 is an equidigital number, since it uses as much as digits as its factorization.

30517013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 30517013 is about 5524.2205785070. The cubic root of 30517013 is about 312.4980710281.

Adding to 30517013 its reverse (31071503), we get a palindrome (61588516).

The spelling of 30517013 in words is "thirty million, five hundred seventeen thousand, thirteen".