30318929 has 2 divisors, whose sum is σ = 30318930. Its totient is φ = 30318928.

The previous prime is 30318881. The next prime is 30318983. The reversal of 30318929 is 92981303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 123904 = 5495^2 + 352^2 .

It is an emirp because it is prime and its reverse (92981303) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30318929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30318989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15159464 + 15159465.

It is an arithmetic number, because the mean of its divisors is an integer number (15159465).

Almost surely, 2^30318929 is an apocalyptic number.

It is an amenable number.

30318929 is a deficient number, since it is larger than the sum of its proper divisors (1).

30318929 is an equidigital number, since it uses as much as digits as its factorization.

30318929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 30318929 is about 5506.2627071363. The cubic root of 30318929 is about 311.8204677460.

The spelling of 30318929 in words is "thirty million, three hundred eighteen thousand, nine hundred twenty-nine".