198150 has 24 divisors (see below), whose sum is σ = 491784. Its totient is φ = 52800.

The previous prime is 198139. The next prime is 198173. The reversal of 198150 is 51891.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 198150.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198150.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511 + ... + 810.

It is an arithmetic number, because the mean of its divisors is an integer number (20491).

2¹⁹⁸¹⁵⁰ is an apocalyptic number.

198150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198150 is an abundant number, since it is smaller than the sum of its proper divisors (293634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198150 is a wasteful number, since it uses less digits than its factorization.

198150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 198150 is about 445.1404272811. The cubic root of 198150 is about 58.2994814928.

The spelling of 198150 in words is "one hundred ninety-eight thousand, one hundred fifty".