208951 has 4 divisors (see below), whose sum is σ = 210112. Its totient is φ = 207792.

The previous prime is 208933. The next prime is 208961. The reversal of 208951 is 159802.

208951 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 159802 = 2 ⋅79901.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208951 is a prime.

It is a Duffinian number.

208951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208931) 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, 246 + ... + 691.

It is an arithmetic number, because the mean of its divisors is an integer number (52528).

2²⁰⁸⁹⁵¹ is an apocalyptic number.

208951 is a deficient number, since it is larger than the sum of its proper divisors (1161).

208951 is an equidigital number, since it uses as much as digits as its factorization.

208951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 208951 is about 457.1115837517. Note that the first 3 decimals coincide. The cubic root of 208951 is about 59.3400832563.

The spelling of 208951 in words is "two hundred eight thousand, nine hundred fifty-one".