30013513 has 2 divisors, whose sum is σ = 30013514. Its totient is φ = 30013512.

The previous prime is 30013499. The next prime is 30013523. The reversal of 30013513 is 31531003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27846729 + 2166784 = 5277^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 30013513 - 2¹³ = 30005321 is a prime.

It is not a weakly prime, because it can be changed into another prime (30013523) 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, 15006756 + 15006757.

It is an arithmetic number, because the mean of its divisors is an integer number (15006757).

Almost surely, 2^30013513 is an apocalyptic number.

It is an amenable number.

30013513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30013513 is an equidigital number, since it uses as much as digits as its factorization.

30013513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 30013513 is about 5478.4589986601. The cubic root of 30013513 is about 310.7698969622.

Adding to 30013513 its reverse (31531003), we get a palindrome (61544516).

The spelling of 30013513 in words is "thirty million, thirteen thousand, five hundred thirteen".