198485 has 16 divisors (see below), whose sum is σ = 279936. Its totient is φ = 132288.

The previous prime is 198479. The next prime is 198491. The reversal of 198485 is 584891.

198485 = T₁ + T₂ + ... + T₁₀₅.

198485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

198485 is a nontrivial binomial coefficient, being equal to C(107, 3).

It is an interprime number because it is at equal distance from previous prime (198479) and next prime (198491).

It is not a de Polignac number, because 198485 - 2⁴ = 198469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

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 198485.

It is an unprimeable number.

It is the 105-th tetrahedral number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1802 + ... + 1908.

It is an arithmetic number, because the mean of its divisors is an integer number (17496).

2¹⁹⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

198485 is a deficient number, since it is larger than the sum of its proper divisors (81451).

198485 is a wasteful number, since it uses less digits than its factorization.

198485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172.

The product of its digits is 11520, while the sum is 35.

The square root of 198485 is about 445.5165541257. The cubic root of 198485 is about 58.3323174426.

198485 divided by its sum of digits (35) gives a triangular number (5671 = T₁₀₆).

The spelling of 198485 in words is "one hundred ninety-eight thousand, four hundred eighty-five".