198544 has 10 divisors (see below), whose sum is σ = 384710. Its totient is φ = 99264.

The previous prime is 198533. The next prime is 198553. The reversal of 198544 is 445891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 115600 + 82944 = 340^2 + 288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6189 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (38471).

2¹⁹⁸⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

198544 is a deficient number, since it is larger than the sum of its proper divisors (186166).

198544 is a wasteful number, since it uses less digits than its factorization.

198544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12417 (or 12411 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 198544 is about 445.5827644782. The cubic root of 198544 is about 58.3380966632.

Adding to 198544 its product of digits (5760), we get a square (204304 = 452²).

The spelling of 198544 in words is "one hundred ninety-eight thousand, five hundred forty-four".