30934219 has 2 divisors, whose sum is σ = 30934220. Its totient is φ = 30934218.

The previous prime is 30934217. The next prime is 30934229. The reversal of 30934219 is 91243903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30934219 - 2¹ = 30934217 is a prime.

It is a super-2 number, since 2×30934219² = 1913851810279922, which contains 22 as substring.

Together with 30934217, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30934217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15467109 + 15467110.

It is an arithmetic number, because the mean of its divisors is an integer number (15467110).

Almost surely, 2^30934219 is an apocalyptic number.

30934219 is a deficient number, since it is larger than the sum of its proper divisors (1).

30934219 is an equidigital number, since it uses as much as digits as its factorization.

30934219 is an odious number, because the sum of its binary digits is odd.

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

The square root of 30934219 is about 5561.8539175351. The cubic root of 30934219 is about 313.9157109417.

The spelling of 30934219 in words is "thirty million, nine hundred thirty-four thousand, two hundred nineteen".