1125800 has 48 divisors (see below), whose sum is σ = 2825340. Its totient is φ = 414720.

The previous prime is 1125797. The next prime is 1125811. The reversal of 1125800 is 85211.

It can be written as a sum of positive squares in 6 ways, for example, as 56644 + 1069156 = 238^2 + 1034^2 .

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, 2384 + ... + 2816.

2^1125800 is an apocalyptic number.

1125800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412670).

1125800 is an abundant number, since it is smaller than the sum of its proper divisors (1699540).

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

1125800 is a wasteful number, since it uses less digits than its factorization.

1125800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1125800 is about 1061.0372283761. The cubic root of 1125800 is about 104.0288381566.

The spelling of 1125800 in words is "one million, one hundred twenty-five thousand, eight hundred".