30509419 has 2 divisors, whose sum is σ = 30509420. Its totient is φ = 30509418.

The previous prime is 30509393. The next prime is 30509429. The reversal of 30509419 is 91490503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30509419 - 2⁵ = 30509387 is a prime.

It is a super-2 number, since 2×30509419² = 1861649295435122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30509429) 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 as a sum of consecutive naturals, namely, 15254709 + 15254710.

It is an arithmetic number, because the mean of its divisors is an integer number (15254710).

Almost surely, 2^30509419 is an apocalyptic number.

30509419 is a deficient number, since it is larger than the sum of its proper divisors (1).

30509419 is an equidigital number, since it uses as much as digits as its factorization.

30509419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 30509419 is about 5523.5331989588. The cubic root of 30509419 is about 312.4721477043.

The spelling of 30509419 in words is "thirty million, five hundred nine thousand, four hundred nineteen".