198148 has 6 divisors (see below), whose sum is σ = 346766. Its totient is φ = 99072.

The previous prime is 198139. The next prime is 198173. The reversal of 198148 is 841891.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 31684 = 408^2 + 178^2 .

It is a super-3 number, since 3×198148³ = 23339434770653376, which contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24765 + ... + 24772.

2¹⁹⁸¹⁴⁸ is an apocalyptic number.

It is an amenable number.

198148 is a deficient number, since it is larger than the sum of its proper divisors (148618).

198148 is a wasteful number, since it uses less digits than its factorization.

198148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49541 (or 49539 counting only the distinct ones).

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

The square root of 198148 is about 445.1381807933. The cubic root of 198148 is about 58.2992853462.

The spelling of 198148 in words is "one hundred ninety-eight thousand, one hundred forty-eight".