2005019 has 2 divisors, whose sum is σ = 2005020. Its totient is φ = 2005018.

The previous prime is 2005001. The next prime is 2005021. The reversal of 2005019 is 9105002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2005019 - 2⁸ = 2004763 is a prime.

It is a super-2 number, since 2×2005019² = 8040202380722, which contains 22 as substring.

Together with 2005021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2004988 and 2005006.

It is not a weakly prime, because it can be changed into another prime (2005039) 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, 1002509 + 1002510.

It is an arithmetic number, because the mean of its divisors is an integer number (1002510).

2^2005019 is an apocalyptic number.

2005019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005019 is an equidigital number, since it uses as much as digits as its factorization.

2005019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 2005019 is about 1415.9869349680. The cubic root of 2005019 is about 126.0974093473.

Subtracting from 2005019 its sum of digits (17), we obtain a palindrome (2005002).

The spelling of 2005019 in words is "two million, five thousand, nineteen".