102166199 has 2 divisors, whose sum is σ = 102166200. Its totient is φ = 102166198.

The previous prime is 102166193. The next prime is 102166271. The reversal of 102166199 is 991661201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102166199 is a 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 (102166193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51083099 + 51083100.

It is an arithmetic number, because the mean of its divisors is an integer number (51083100).

Almost surely, 2^102166199 is an apocalyptic number.

102166199 is a deficient number, since it is larger than the sum of its proper divisors (1).

102166199 is an equidigital number, since it uses as much as digits as its factorization.

102166199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 102166199 is about 10107.7296659537. The cubic root of 102166199 is about 467.4865051821.

The spelling of 102166199 in words is "one hundred two million, one hundred sixty-six thousand, one hundred ninety-nine".