34000019 has 2 divisors, whose sum is σ = 34000020. Its totient is φ = 34000018.

The previous prime is 34000009. The next prime is 34000061. The reversal of 34000019 is 91000043.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34000019 is a prime.

It is a super-2 number, since 2×34000019² = 2312002584000722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 33999970 and 34000006.

It is not a weakly prime, because it can be changed into another prime (34000009) 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, 17000009 + 17000010.

It is an arithmetic number, because the mean of its divisors is an integer number (17000010).

Almost surely, 2^34000019 is an apocalyptic number.

34000019 is a deficient number, since it is larger than the sum of its proper divisors (1).

34000019 is an equidigital number, since it uses as much as digits as its factorization.

34000019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 34000019 is about 5830.9535240816. The cubic root of 34000019 is about 323.9612404734.

The spelling of 34000019 in words is "thirty-four million, nineteen", and thus it is an aban number.