199359091 has 2 divisors, whose sum is σ = 199359092. Its totient is φ = 199359090.

The previous prime is 199359059. The next prime is 199359133. The reversal of 199359091 is 190953991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199359091 - 2⁵ = 199359059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199350091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99679545 + 99679546.

It is an arithmetic number, because the mean of its divisors is an integer number (99679546).

Almost surely, 2^199359091 is an apocalyptic number.

199359091 is a deficient number, since it is larger than the sum of its proper divisors (1).

199359091 is an equidigital number, since it uses as much as digits as its factorization.

199359091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98415, while the sum is 46.

The square root of 199359091 is about 14119.4578861938. The cubic root of 199359091 is about 584.1782027560.

The spelling of 199359091 in words is "one hundred ninety-nine million, three hundred fifty-nine thousand, ninety-one".