208051 has 4 divisors (see below), whose sum is σ = 213712. Its totient is φ = 202392.

The previous prime is 208049. The next prime is 208057. The reversal of 208051 is 150802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150802 = 2 ⋅75401.

It is a cyclic number.

It is not a de Polignac number, because 208051 - 2¹ = 208049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208057) 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, 2775 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (53428).

2²⁰⁸⁰⁵¹ is an apocalyptic number.

208051 is a deficient number, since it is larger than the sum of its proper divisors (5661).

208051 is an equidigital number, since it uses as much as digits as its factorization.

208051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 208051 is about 456.1260790615. The cubic root of 208051 is about 59.2547635141.

Adding to 208051 its reverse (150802), we get a palindrome (358853).

The spelling of 208051 in words is "two hundred eight thousand, fifty-one".