198010281 has 16 divisors (see below), whose sum is σ = 303586304. Its totient is φ = 112452624.

The previous prime is 198010249. The next prime is 198010291. The reversal of 198010281 is 182010891.

It is not a de Polignac number, because 198010281 - 2⁵ = 198010249 is a prime.

It is a super-2 number, since 2×198010281² = 78416142763397922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198010291) 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, 25501 + ... + 32346.

It is an arithmetic number, because the mean of its divisors is an integer number (18974144).

Almost surely, 2^198010281 is an apocalyptic number.

It is an amenable number.

198010281 is a deficient number, since it is larger than the sum of its proper divisors (105576023).

198010281 is a wasteful number, since it uses less digits than its factorization.

198010281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58020.

The product of its (nonzero) digits is 1152, while the sum is 30.

The square root of 198010281 is about 14071.6125941557. The cubic root of 198010281 is about 582.8577561251.

The spelling of 198010281 in words is "one hundred ninety-eight million, ten thousand, two hundred eighty-one".