198946281 has 8 divisors (see below), whose sum is σ = 265379104. Its totient is φ = 132572160.

The previous prime is 198946273. The next prime is 198946301. The reversal of 198946281 is 182649891.

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

It is not a de Polignac number, because 198946281 - 2³ = 198946273 is a prime.

It is a super-2 number, since 2×198946281² = 79159245447461922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198946281.

It is not an unprimeable number, because it can be changed into a prime (198946201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6040 + ... + 20841.

It is an arithmetic number, because the mean of its divisors is an integer number (33172388).

Almost surely, 2^198946281 is an apocalyptic number.

It is an amenable number.

198946281 is a deficient number, since it is larger than the sum of its proper divisors (66432823).

198946281 is a wasteful number, since it uses less digits than its factorization.

198946281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29351.

The product of its digits is 248832, while the sum is 48.

The square root of 198946281 is about 14104.8318316809. The cubic root of 198946281 is about 583.7747076588.

The spelling of 198946281 in words is "one hundred ninety-eight million, nine hundred forty-six thousand, two hundred eighty-one".