198113039 has 4 divisors (see below), whose sum is σ = 198443280. Its totient is φ = 197782800.

The previous prime is 198113023. The next prime is 198113051. The reversal of 198113039 is 930311891.

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

It is a cyclic number.

It is not a de Polignac number, because 198113039 - 2⁴ = 198113023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198113009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164219 + ... + 165420.

It is an arithmetic number, because the mean of its divisors is an integer number (49610820).

Almost surely, 2^198113039 is an apocalyptic number.

198113039 is a deficient number, since it is larger than the sum of its proper divisors (330241).

198113039 is an equidigital number, since it uses as much as digits as its factorization.

198113039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330240.

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

The square root of 198113039 is about 14075.2633723139. The cubic root of 198113039 is about 582.9585639205.

The spelling of 198113039 in words is "one hundred ninety-eight million, one hundred thirteen thousand, thirty-nine".