198112065 has 16 divisors (see below), whose sum is σ = 318593088. Its totient is φ = 105121856.

The previous prime is 198112063. The next prime is 198112073. The reversal of 198112065 is 560211891.

It is a cyclic number.

It is not a de Polignac number, because 198112065 - 2¹ = 198112063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198112063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30567 + ... + 36476.

It is an arithmetic number, because the mean of its divisors is an integer number (19912068).

Almost surely, 2^198112065 is an apocalyptic number.

198112065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198112065 is a deficient number, since it is larger than the sum of its proper divisors (120481023).

198112065 is a wasteful number, since it uses less digits than its factorization.

198112065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67248.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 198112065 is about 14075.2287725635. The cubic root of 198112065 is about 582.9576085693.

The spelling of 198112065 in words is "one hundred ninety-eight million, one hundred twelve thousand, sixty-five".