4005019 has 2 divisors, whose sum is σ = 4005020. Its totient is φ = 4005018.

The previous prime is 4004989. The next prime is 4005049. The reversal of 4005019 is 9105004.

It is a balanced prime because it is at equal distance from previous prime (4004989) and next prime (4005049).

It is a cyclic number.

It is not a de Polignac number, because 4005019 - 2¹³ = 3996827 is a prime.

It is a super-2 number, since 2×4005019² = 32080354380722, which contains 22 as substring.

It is a Chen prime.

4005019 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4004987 and 4005005.

It is not a weakly prime, because it can be changed into another prime (4005049) 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, 2002509 + 2002510.

It is an arithmetic number, because the mean of its divisors is an integer number (2002510).

Almost surely, 2^4005019 is an apocalyptic number.

4005019 is a deficient number, since it is larger than the sum of its proper divisors (1).

4005019 is an equidigital number, since it uses as much as digits as its factorization.

4005019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 4005019 is about 2001.2543566474. The cubic root of 4005019 is about 158.8064704963.

The spelling of 4005019 in words is "four million, five thousand, nineteen".