30208117 has 2 divisors, whose sum is σ = 30208118. Its totient is φ = 30208116.

The previous prime is 30208033. The next prime is 30208121. The reversal of 30208117 is 71180203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26946481 + 3261636 = 5191^2 + 1806^2 .

It is an emirp because it is prime and its reverse (71180203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30208117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30208147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15104058 + 15104059.

It is an arithmetic number, because the mean of its divisors is an integer number (15104059).

Almost surely, 2^30208117 is an apocalyptic number.

It is an amenable number.

30208117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30208117 is an equidigital number, since it uses as much as digits as its factorization.

30208117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 30208117 is about 5496.1911356866. The cubic root of 30208117 is about 311.4401153532.

The spelling of 30208117 in words is "thirty million, two hundred eight thousand, one hundred seventeen".