30065219 has 4 divisors (see below), whose sum is σ = 30077760. Its totient is φ = 30052680.

The previous prime is 30065183. The next prime is 30065261. The reversal of 30065219 is 91256003.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30065219 - 2⁸ = 30064963 is a prime.

It is a super-2 number, since 2×30065219² = 1807834787035922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30065419) 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 in 3 ways as a sum of consecutive naturals, for example, 1427 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (7519440).

Almost surely, 2^30065219 is an apocalyptic number.

30065219 is a deficient number, since it is larger than the sum of its proper divisors (12541).

30065219 is an equidigital number, since it uses as much as digits as its factorization.

30065219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12540.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 30065219 is about 5483.1759957164. The cubic root of 30065219 is about 310.9482549532.

The spelling of 30065219 in words is "thirty million, sixty-five thousand, two hundred nineteen".