1125600 has 144 divisors (see below), whose sum is σ = 4249728. Its totient is φ = 253440.

The previous prime is 1125599. The next prime is 1125629. The reversal of 1125600 is 65211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1125600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16767 + ... + 16833.

It is an arithmetic number, because the mean of its divisors is an integer number (29512).

2^1125600 is an apocalyptic number.

1125600 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 1125600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2124864).

1125600 is an abundant number, since it is smaller than the sum of its proper divisors (3124128).

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

1125600 is a wasteful number, since it uses less digits than its factorization.

1125600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1125600 is about 1060.9429767900. The cubic root of 1125600 is about 104.0226775005.

The spelling of 1125600 in words is "one million, one hundred twenty-five thousand, six hundred".