198481 has 8 divisors (see below), whose sum is σ = 209664. Its totient is φ = 187680.

The previous prime is 198479. The next prime is 198491. The reversal of 198481 is 184891.

198481 = T₃ + T₄ + ... + T₁₀₅.

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 198481 - 2¹ = 198479 is a prime.

It is a super-2 number, since 2×198481² = 78789414722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198461) 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, 1876 + ... + 1978.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2¹⁹⁸⁴⁸¹ is an apocalyptic number.

It is an amenable number.

198481 is a deficient number, since it is larger than the sum of its proper divisors (11183).

198481 is a wasteful number, since it uses less digits than its factorization.

198481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its digits is 2304, while the sum is 31.

The square root of 198481 is about 445.5120649320. The cubic root of 198481 is about 58.3319255896.

The spelling of 198481 in words is "one hundred ninety-eight thousand, four hundred eighty-one".