198625 has 16 divisors (see below), whose sum is σ = 284544. Its totient is φ = 135600.

The previous prime is 198623. The next prime is 198637. The reversal of 198625 is 526891.

198625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198625 - 2¹ = 198623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (17784).

2¹⁹⁸⁶²⁵ is an apocalyptic number.

It is an amenable number.

198625 is a deficient number, since it is larger than the sum of its proper divisors (85919).

198625 is an equidigital number, since it uses as much as digits as its factorization.

198625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 239 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 198625 is about 445.6736474148. The cubic root of 198625 is about 58.3460289828.

The spelling of 198625 in words is "one hundred ninety-eight thousand, six hundred twenty-five".