199045099 has 8 divisors (see below), whose sum is σ = 217770048. Its totient is φ = 180425160.

The previous prime is 199045087. The next prime is 199045103. The reversal of 199045099 is 990540991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199045099 - 2¹¹ = 199043051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199045499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22257 + ... + 29890.

It is an arithmetic number, because the mean of its divisors is an integer number (27221256).

Almost surely, 2^199045099 is an apocalyptic number.

199045099 is a deficient number, since it is larger than the sum of its proper divisors (18724949).

199045099 is a wasteful number, since it uses less digits than its factorization.

199045099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52505.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 199045099 is about 14108.3343807836. The cubic root of 199045099 is about 583.8713466445.

It can be divided in two parts, 1990 and 45099, that added together give a square (47089 = 217²).

The spelling of 199045099 in words is "one hundred ninety-nine million, forty-five thousand, ninety-nine".