1161198 has 24 divisors (see below), whose sum is σ = 2598336. Its totient is φ = 374400.

The previous prime is 1161169. The next prime is 1161203. The reversal of 1161198 is 8911611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 483 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (108264).

2^1161198 is an apocalyptic number.

1161198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1161198 is an abundant number, since it is smaller than the sum of its proper divisors (1437138).

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

1161198 is a wasteful number, since it uses less digits than its factorization.

1161198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2117 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The square root of 1161198 is about 1077.5889754447. The cubic root of 1161198 is about 105.1079162594.

The spelling of 1161198 in words is "one million, one hundred sixty-one thousand, one hundred ninety-eight".