1111198 has 16 divisors (see below), whose sum is σ = 1854576. Its totient is φ = 495040.

The previous prime is 1111189. The next prime is 1111211. The reversal of 1111198 is 8911111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (115911).

2^1111198 is an apocalyptic number.

1111198 is a deficient number, since it is larger than the sum of its proper divisors (743378).

1111198 is a wasteful number, since it uses less digits than its factorization.

1111198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019.

The product of its digits is 72, while the sum is 22.

The square root of 1111198 is about 1054.1337676026. The cubic root of 1111198 is about 103.5771166346.

The spelling of 1111198 in words is "one million, one hundred eleven thousand, one hundred ninety-eight".