208019 has 4 divisors (see below), whose sum is σ = 237744. Its totient is φ = 178296.

The previous prime is 208009. The next prime is 208037. The reversal of 208019 is 910802.

208019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910802 = 2 ⋅455401.

It is a cyclic number.

It is not a de Polignac number, because 208019 - 2⁴ = 208003 is a prime.

It is a super-2 number, since 2×208019² = 86543808722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14852 + ... + 14865.

It is an arithmetic number, because the mean of its divisors is an integer number (59436).

2²⁰⁸⁰¹⁹ is an apocalyptic number.

208019 is a deficient number, since it is larger than the sum of its proper divisors (29725).

208019 is an equidigital number, since it uses as much as digits as its factorization.

208019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29724.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 208019 is about 456.0909996919. The cubic root of 208019 is about 59.2517253974.

The spelling of 208019 in words is "two hundred eight thousand, nineteen".