256199 has 2 divisors, whose sum is σ = 256200. Its totient is φ = 256198.

The previous prime is 256189. The next prime is 256211. The reversal of 256199 is 991652.

256199 is nontrivially palindromic in base 13.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256199 is a prime.

It is a Chen 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 256199.

It is not a weakly prime, because it can be changed into another prime (256129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128099 + 128100.

It is an arithmetic number, because the mean of its divisors is an integer number (128100).

2²⁵⁶¹⁹⁹ is an apocalyptic number.

256199 is a deficient number, since it is larger than the sum of its proper divisors (1).

256199 is an equidigital number, since it uses as much as digits as its factorization.

256199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 32.

The square root of 256199 is about 506.1610415668. The cubic root of 256199 is about 63.5124905679.

The spelling of 256199 in words is "two hundred fifty-six thousand, one hundred ninety-nine".