198075 has 24 divisors (see below), whose sum is σ = 347200. Its totient is φ = 99360.

The previous prime is 198073. The next prime is 198083. The reversal of 198075 is 570891.

It is not a de Polignac number, because 198075 - 2¹ = 198073 is a prime.

198075 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (198073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1356 + ... + 1494.

2¹⁹⁸⁰⁷⁵ is an apocalyptic number.

198075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198075 is a deficient number, since it is larger than the sum of its proper divisors (149125).

198075 is a wasteful number, since it uses less digits than its factorization.

198075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 198075 is about 445.0561762295. The cubic root of 198075 is about 58.2921250913.

Subtracting 198075 from its reverse (570891), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 198075 in words is "one hundred ninety-eight thousand, seventy-five".