30135517 has 2 divisors, whose sum is σ = 30135518. Its totient is φ = 30135516.

The previous prime is 30135493. The next prime is 30135559. The reversal of 30135517 is 71553103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17023876 + 13111641 = 4126^2 + 3621^2 .

It is an emirp because it is prime and its reverse (71553103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30135517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30135491 and 30135500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30130517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067758 + 15067759.

It is an arithmetic number, because the mean of its divisors is an integer number (15067759).

Almost surely, 2^30135517 is an apocalyptic number.

It is an amenable number.

30135517 is a deficient number, since it is larger than the sum of its proper divisors (1).

30135517 is an equidigital number, since it uses as much as digits as its factorization.

30135517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 30135517 is about 5489.5825888678. The cubic root of 30135517 is about 311.1904176740.

The spelling of 30135517 in words is "thirty million, one hundred thirty-five thousand, five hundred seventeen".