198119 has 4 divisors (see below), whose sum is σ = 201144. Its totient is φ = 195096.

The previous prime is 198109. The next prime is 198127. The reversal of 198119 is 911891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911891 = 131 ⋅6961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198119 is a prime.

It is a super-2 number, since 2×198119² = 78502276322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198091 and 198100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (50286).

2¹⁹⁸¹¹⁹ is an apocalyptic number.

198119 is a deficient number, since it is larger than the sum of its proper divisors (3025).

198119 is an equidigital number, since it uses as much as digits as its factorization.

198119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024.

The product of its digits is 648, while the sum is 29.

The square root of 198119 is about 445.1056054466. The cubic root of 198119 is about 58.2964410719.

The spelling of 198119 in words is "one hundred ninety-eight thousand, one hundred nineteen".