30319249 has 2 divisors, whose sum is σ = 30319250. Its totient is φ = 30319248.

The previous prime is 30319229. The next prime is 30319253. The reversal of 30319249 is 94291303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 1803649 = 5340^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 30319249 - 2⁵ = 30319217 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30319249.

It is not a weakly prime, because it can be changed into another prime (30319229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15159624 + 15159625.

It is an arithmetic number, because the mean of its divisors is an integer number (15159625).

Almost surely, 2^30319249 is an apocalyptic number.

It is an amenable number.

30319249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30319249 is an equidigital number, since it uses as much as digits as its factorization.

30319249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 30319249 is about 5506.2917648813. The cubic root of 30319249 is about 311.8215647746.

The spelling of 30319249 in words is "thirty million, three hundred nineteen thousand, two hundred forty-nine".