111198 has 16 divisors (see below), whose sum is σ = 228096. Its totient is φ = 36120.

The previous prime is 111191. The next prime is 111211. The reversal of 111198 is 891111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111191) by changing a digit.

111198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 473.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2¹¹¹¹⁹⁸ is an apocalyptic number.

111198 is an abundant number, since it is smaller than the sum of its proper divisors (116898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111198 is a wasteful number, since it uses less digits than its factorization.

111198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its digits is 72, while the sum is 21.

The square root of 111198 is about 333.4636411965. The cubic root of 111198 is about 48.0875139580.

The spelling of 111198 in words is "one hundred eleven thousand, one hundred ninety-eight".