30190019 has 4 divisors (see below), whose sum is σ = 30759696. Its totient is φ = 29620344.

The previous prime is 30190009. The next prime is 30190037. The reversal of 30190019 is 91009103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91009103 = 2069 ⋅43987.

It is a cyclic number.

It is not a de Polignac number, because 30190019 - 2¹² = 30185923 is a prime.

It is a super-2 number, since 2×30190019² = 1822874494440722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30189976 and 30190003.

It is not an unprimeable number, because it can be changed into a prime (30190009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284759 + ... + 284864.

It is an arithmetic number, because the mean of its divisors is an integer number (7689924).

Almost surely, 2^30190019 is an apocalyptic number.

30190019 is a deficient number, since it is larger than the sum of its proper divisors (569677).

30190019 is an equidigital number, since it uses as much as digits as its factorization.

30190019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569676.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 30190019 is about 5494.5444761145. The cubic root of 30190019 is about 311.3779072476.

The spelling of 30190019 in words is "thirty million, one hundred ninety thousand, nineteen".