198331105 has 16 divisors (see below), whose sum is σ = 273525120. Its totient is φ = 135234432.

The previous prime is 198331097. The next prime is 198331121. The reversal of 198331105 is 501133891.

198331105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 198331105 - 2³ = 198331097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9564 + ... + 22093.

It is an arithmetic number, because the mean of its divisors is an integer number (17095320).

Almost surely, 2^198331105 is an apocalyptic number.

It is an amenable number.

198331105 is a deficient number, since it is larger than the sum of its proper divisors (75194015).

198331105 is a wasteful number, since it uses less digits than its factorization.

198331105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31848.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 198331105 is about 14083.0076688185. The cubic root of 198331105 is about 583.1723759090.

Adding to 198331105 its reverse (501133891), we get a palindrome (699464996).

The spelling of 198331105 in words is "one hundred ninety-eight million, three hundred thirty-one thousand, one hundred five".