30019219 has 2 divisors, whose sum is σ = 30019220. Its totient is φ = 30019218.

The previous prime is 30019217. The next prime is 30019267. The reversal of 30019219 is 91291003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30019219 - 2¹ = 30019217 is a prime.

It is a super-2 number, since 2×30019219² = 1802307018739922, which contains 22 as substring.

Together with 30019217, it forms a pair of twin primes.

It is equal to p_1859011 and since 30019219 and 1859011 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 30019193 and 30019202.

It is not a weakly prime, because it can be changed into another prime (30019211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15009609 + 15009610.

It is an arithmetic number, because the mean of its divisors is an integer number (15009610).

Almost surely, 2^30019219 is an apocalyptic number.

30019219 is a deficient number, since it is larger than the sum of its proper divisors (1).

30019219 is an equidigital number, since it uses as much as digits as its factorization.

30019219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 30019219 is about 5478.9797407912. The cubic root of 30019219 is about 310.7895896550.

The spelling of 30019219 in words is "thirty million, nineteen thousand, two hundred nineteen".