198914099 has 4 divisors (see below), whose sum is σ = 199944936. Its totient is φ = 197883264.

The previous prime is 198914077. The next prime is 198914101. The reversal of 198914099 is 990419891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198914099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198914299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515129 + ... + 515514.

It is an arithmetic number, because the mean of its divisors is an integer number (49986234).

Almost surely, 2^198914099 is an apocalyptic number.

198914099 is a deficient number, since it is larger than the sum of its proper divisors (1030837).

198914099 is a wasteful number, since it uses less digits than its factorization.

198914099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030836.

The product of its (nonzero) digits is 209952, while the sum is 50.

The square root of 198914099 is about 14103.6909708062. The cubic root of 198914099 is about 583.7432283893.

The spelling of 198914099 in words is "one hundred ninety-eight million, nine hundred fourteen thousand, ninety-nine".