199090199 has 16 divisors (see below), whose sum is σ = 251623680. Its totient is φ = 153005760.

The previous prime is 199090183. The next prime is 199090201. The reversal of 199090199 is 991090991.

It is a cyclic number.

It is not a de Polignac number, because 199090199 - 2⁴ = 199090183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199090109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12089 + ... + 23330.

It is an arithmetic number, because the mean of its divisors is an integer number (15726480).

Almost surely, 2^199090199 is an apocalyptic number.

199090199 is a deficient number, since it is larger than the sum of its proper divisors (52533481).

199090199 is a wasteful number, since it uses less digits than its factorization.

199090199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35510.

The product of its (nonzero) digits is 59049, while the sum is 47.

The square root of 199090199 is about 14109.9326362673. The cubic root of 199090199 is about 583.9154415243.

The spelling of 199090199 in words is "one hundred ninety-nine million, ninety thousand, one hundred ninety-nine".