30849019 has 2 divisors, whose sum is σ = 30849020. Its totient is φ = 30849018.

The previous prime is 30849001. The next prime is 30849031. The reversal of 30849019 is 91094803.

It is a strong prime.

It is an emirp because it is prime and its reverse (91094803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30849019 - 2¹⁹ = 30324731 is a prime.

It is a super-2 number, since 2×30849019² = 1903323946524722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30849079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15424509 + 15424510.

It is an arithmetic number, because the mean of its divisors is an integer number (15424510).

Almost surely, 2^30849019 is an apocalyptic number.

30849019 is a deficient number, since it is larger than the sum of its proper divisors (1).

30849019 is an equidigital number, since it uses as much as digits as its factorization.

30849019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 30849019 is about 5554.1893197838. The cubic root of 30849019 is about 313.6272471022.

The spelling of 30849019 in words is "thirty million, eight hundred forty-nine thousand, nineteen".