198319 has 8 divisors (see below), whose sum is σ = 219600. Its totient is φ = 179080.

The previous prime is 198313. The next prime is 198323. The reversal of 198319 is 913891.

It is not a de Polignac number, because 198319 - 2⁹ = 197807 is a prime.

It is a super-2 number, since 2×198319² = 78660851522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257 + ... + 1405.

It is an arithmetic number, because the mean of its divisors is an integer number (27450).

2¹⁹⁸³¹⁹ is an apocalyptic number.

198319 is a deficient number, since it is larger than the sum of its proper divisors (21281).

198319 is an equidigital number, since it uses as much as digits as its factorization.

198319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 160 counting only the distinct ones).

The product of its digits is 1944, while the sum is 31.

The square root of 198319 is about 445.3302145599. The cubic root of 198319 is about 58.3160511162.

It can be divided in two parts, 1983 and 19, that added together give a palindrome (2002).

The spelling of 198319 in words is "one hundred ninety-eight thousand, three hundred nineteen".