208123 has 4 divisors (see below), whose sum is σ = 211048. Its totient is φ = 205200.

The previous prime is 208121. The next prime is 208129. The reversal of 208123 is 321802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 208123 - 2¹ = 208121 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 208097 and 208106.

It is not an unprimeable number, because it can be changed into a prime (208121) 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, 1353 + ... + 1498.

It is an arithmetic number, because the mean of its divisors is an integer number (52762).

2²⁰⁸¹²³ is an apocalyptic number.

208123 is a deficient number, since it is larger than the sum of its proper divisors (2925).

208123 is an equidigital number, since it uses as much as digits as its factorization.

208123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 208123 is about 456.2049977806. The cubic root of 208123 is about 59.2615981378.

Adding to 208123 its reverse (321802), we get a palindrome (529925).

The spelling of 208123 in words is "two hundred eight thousand, one hundred twenty-three".