206951 has 2 divisors, whose sum is σ = 206952. Its totient is φ = 206950.

The previous prime is 206939. The next prime is 206953. The reversal of 206951 is 159602.

206951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206951 - 2⁶ = 206887 is a prime.

Together with 206953, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₈₅₄₅ and since 206951 and 18545 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206951.

It is not a weakly prime, because it can be changed into another prime (206953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103475 + 103476.

It is an arithmetic number, because the mean of its divisors is an integer number (103476).

2²⁰⁶⁹⁵¹ is an apocalyptic number.

206951 is a deficient number, since it is larger than the sum of its proper divisors (1).

206951 is an equidigital number, since it uses as much as digits as its factorization.

206951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 206951 is about 454.9186740506. The cubic root of 206951 is about 59.1501490183.

The spelling of 206951 in words is "two hundred six thousand, nine hundred fifty-one".