268199 has 2 divisors, whose sum is σ = 268200. Its totient is φ = 268198.

The previous prime is 268189. The next prime is 268207. The reversal of 268199 is 991862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268199 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134099 + 134100.

It is an arithmetic number, because the mean of its divisors is an integer number (134100).

2²⁶⁸¹⁹⁹ is an apocalyptic number.

268199 is a deficient number, since it is larger than the sum of its proper divisors (1).

268199 is an equidigital number, since it uses as much as digits as its factorization.

268199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 268199 is about 517.8793295740. The cubic root of 268199 is about 64.4890112081.

The spelling of 268199 in words is "two hundred sixty-eight thousand, one hundred ninety-nine".