30316249 has 2 divisors, whose sum is σ = 30316250. Its totient is φ = 30316248.

The previous prime is 30316217. The next prime is 30316259. The reversal of 30316249 is 94261303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25321024 + 4995225 = 5032^2 + 2235^2 .

It is an emirp because it is prime and its reverse (94261303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30316249 - 2⁵ = 30316217 is a prime.

It is equal to p_1876312 and since 30316249 and 1876312 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30316259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15158124 + 15158125.

It is an arithmetic number, because the mean of its divisors is an integer number (15158125).

Almost surely, 2^30316249 is an apocalyptic number.

It is an amenable number.

30316249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30316249 is an equidigital number, since it uses as much as digits as its factorization.

30316249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30316249 is about 5506.0193425014. The cubic root of 30316249 is about 311.8112798282.

The spelling of 30316249 in words is "thirty million, three hundred sixteen thousand, two hundred forty-nine".