219019 has 2 divisors, whose sum is σ = 219020. Its totient is φ = 219018.

The previous prime is 219017. The next prime is 219031. The reversal of 219019 is 910912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 219019 - 2¹ = 219017 is a prime.

It is a super-2 number, since 2×219019² = 95938644722, which contains 22 as substring.

Together with 219017, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (219017) 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, 109509 + 109510.

It is an arithmetic number, because the mean of its divisors is an integer number (109510).

2²¹⁹⁰¹⁹ is an apocalyptic number.

219019 is a deficient number, since it is larger than the sum of its proper divisors (1).

219019 is an equidigital number, since it uses as much as digits as its factorization.

219019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 219019 is about 467.9946580892. The cubic root of 219019 is about 60.2782447071.

It can be divided in two parts, 2190 and 19, that added together give a square (2209 = 47²).

The spelling of 219019 in words is "two hundred nineteen thousand, nineteen".