1121850 has 60 divisors (see below), whose sum is σ = 3128334. Its totient is φ = 298080.

The previous prime is 1121839. The next prime is 1121867. The reversal of 1121850 is 581211.

It can be written as a sum of positive squares in 3 ways, for example, as 641601 + 480249 = 801^2 + 693^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3912 + ... + 4188.

2^1121850 is an apocalyptic number.

1121850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564167).

1121850 is an abundant number, since it is smaller than the sum of its proper divisors (2006484).

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

1121850 is a wasteful number, since it uses less digits than its factorization.

1121850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1121850 is about 1059.1742066346. The cubic root of 1121850 is about 103.9070298338.

The spelling of 1121850 in words is "one million, one hundred twenty-one thousand, eight hundred fifty".