1085198 has 4 divisors (see below), whose sum is σ = 1627800. Its totient is φ = 542598.

The previous prime is 1085197. The next prime is 1085221. The reversal of 1085198 is 8915801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271298 + ... + 271301.

It is an arithmetic number, because the mean of its divisors is an integer number (406950).

2^1085198 is an apocalyptic number.

1085198 is a deficient number, since it is larger than the sum of its proper divisors (542602).

1085198 is an equidigital number, since it uses as much as digits as its factorization.

1085198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542601.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1085198 is about 1041.7283715057. The cubic root of 1085198 is about 102.7628944496.

The spelling of 1085198 in words is "one million, eighty-five thousand, one hundred ninety-eight".