189019 has 2 divisors, whose sum is σ = 189020. Its totient is φ = 189018.

The previous prime is 189017. The next prime is 189041. The reversal of 189019 is 910981.

It is a weak prime.

It is an emirp because it is prime and its reverse (910981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189019 - 2¹ = 189017 is a prime.

It is a super-2 number, since 2×189019² = 71456364722, which contains 22 as substring.

Together with 189017, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (189011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94509 + 94510.

It is an arithmetic number, because the mean of its divisors is an integer number (94510).

2¹⁸⁹⁰¹⁹ is an apocalyptic number.

189019 is a deficient number, since it is larger than the sum of its proper divisors (1).

189019 is an equidigital number, since it uses as much as digits as its factorization.

189019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 189019 is about 434.7631539126. The cubic root of 189019 is about 57.3898584712.

The spelling of 189019 in words is "one hundred eighty-nine thousand, nineteen".