206750099 has 2 divisors, whose sum is σ = 206750100. Its totient is φ = 206750098.

The previous prime is 206750087. The next prime is 206750147. The reversal of 206750099 is 990057602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206750099 - 2¹² = 206746003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206750009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103375049 + 103375050.

It is an arithmetic number, because the mean of its divisors is an integer number (103375050).

Almost surely, 2^206750099 is an apocalyptic number.

206750099 is a deficient number, since it is larger than the sum of its proper divisors (1).

206750099 is an equidigital number, since it uses as much as digits as its factorization.

206750099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 206750099 is about 14378.8072871153. The cubic root of 206750099 is about 591.3100250299.

The spelling of 206750099 in words is "two hundred six million, seven hundred fifty thousand, ninety-nine".