198087194 has 8 divisors (see below), whose sum is σ = 297247860. Its totient is φ = 99004576.

The previous prime is 198087193. The next prime is 198087203. The reversal of 198087194 is 491780891.

198087194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 197767969 + 319225 = 14063^2 + 565^2 .

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

It is not an unprimeable number, because it can be changed into a prime (198087193) 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, 12689 + ... + 23604.

Almost surely, 2^198087194 is an apocalyptic number.

198087194 is a deficient number, since it is larger than the sum of its proper divisors (99160666).

198087194 is a wasteful number, since it uses less digits than its factorization.

198087194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39024.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 198087194 is about 14074.3452423194. The cubic root of 198087194 is about 582.9332127045.

The spelling of 198087194 in words is "one hundred ninety-eight million, eighty-seven thousand, one hundred ninety-four".