1125504 has 48 divisors (see below), whose sum is σ = 3242070. Its totient is φ = 374784.

The previous prime is 1125499. The next prime is 1125529. The reversal of 1125504 is 4055211.

1125504 is a `hidden beast` number, since 112 + 550 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 419904 = 840^2 + 648^2 .

It is a tau number, because it is divible by the number of its divisors (48).

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 5 ways as a sum of consecutive naturals, for example, 664 + ... + 1640.

2^1125504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1621035).

1125504 is an abundant number, since it is smaller than the sum of its proper divisors (2116566).

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

1125504 is an equidigital number, since it uses as much as digits as its factorization.

1125504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1125504 is about 1060.8977330544. The cubic root of 1125504 is about 104.0197201264.

The spelling of 1125504 in words is "one million, one hundred twenty-five thousand, five hundred four".