198276281 has 8 divisors (see below), whose sum is σ = 226786560. Its totient is φ = 169812288.

The previous prime is 198276259. The next prime is 198276289. The reversal of 198276281 is 182672891.

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 198276281 - 2²² = 194081977 is a prime.

It is a super-2 number, since 2×198276281² = 78626967214381922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198276289) 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, 1841 + ... + 19998.

It is an arithmetic number, because the mean of its divisors is an integer number (28348320).

Almost surely, 2^198276281 is an apocalyptic number.

It is an amenable number.

198276281 is a deficient number, since it is larger than the sum of its proper divisors (28510279).

198276281 is a wasteful number, since it uses less digits than its factorization.

198276281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23143.

The product of its digits is 96768, while the sum is 44.

The square root of 198276281 is about 14081.0610750753. The cubic root of 198276281 is about 583.1186361645.

The spelling of 198276281 in words is "one hundred ninety-eight million, two hundred seventy-six thousand, two hundred eighty-one".