30934513 has 2 divisors, whose sum is σ = 30934514. Its totient is φ = 30934512.

The previous prime is 30934511. The next prime is 30934537. The reversal of 30934513 is 31543903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18593344 + 12341169 = 4312^2 + 3513^2 .

It is an emirp because it is prime and its reverse (31543903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30934513 - 2¹ = 30934511 is a prime.

Together with 30934511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30934511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15467256 + 15467257.

It is an arithmetic number, because the mean of its divisors is an integer number (15467257).

Almost surely, 2^30934513 is an apocalyptic number.

It is an amenable number.

30934513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30934513 is an equidigital number, since it uses as much as digits as its factorization.

30934513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 30934513 is about 5561.8803475084. The cubic root of 30934513 is about 313.9167054275.

The spelling of 30934513 in words is "thirty million, nine hundred thirty-four thousand, five hundred thirteen".