1121198 has 16 divisors (see below), whose sum is σ = 1874880. Its totient is φ = 499296.

The previous prime is 1121191. The next prime is 1121203. The reversal of 1121198 is 8911211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121191) by changing a digit.

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, 11 + ... + 1497.

It is an arithmetic number, because the mean of its divisors is an integer number (117180).

2^1121198 is an apocalyptic number.

1121198 is a deficient number, since it is larger than the sum of its proper divisors (753682).

1121198 is a wasteful number, since it uses less digits than its factorization.

1121198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531.

The product of its digits is 144, while the sum is 23.

The square root of 1121198 is about 1058.8663749501. The cubic root of 1121198 is about 103.8868962710.

The spelling of 1121198 in words is "one million, one hundred twenty-one thousand, one hundred ninety-eight".