198350081 has 8 divisors (see below), whose sum is σ = 205181760. Its totient is φ = 191595888.

The previous prime is 198350077. The next prime is 198350093. The reversal of 198350081 is 180053891.

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

It is a cyclic number.

It is not a de Polignac number, because 198350081 - 2² = 198350077 is a prime.

It is a super-2 number, since 2×198350081² = 78685509265413122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198350021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14141 + ... + 24426.

It is an arithmetic number, because the mean of its divisors is an integer number (25647720).

Almost surely, 2^198350081 is an apocalyptic number.

It is an amenable number.

198350081 is a deficient number, since it is larger than the sum of its proper divisors (6831679).

198350081 is a wasteful number, since it uses less digits than its factorization.

198350081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38743.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 198350081 is about 14083.6813724253. The cubic root of 198350081 is about 583.1909743131.

The spelling of 198350081 in words is "one hundred ninety-eight million, three hundred fifty thousand, eighty-one".