1125744000 has 256 divisors, whose sum is σ = 3818880000. Its totient is φ = 293222400.

The previous prime is 1125743989. The next prime is 1125744007. The reversal of 1125744000 is 4475211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125744007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255751 + ... + 2256249.

It is an arithmetic number, because the mean of its divisors is an integer number (14917500).

Almost surely, 2^1125744000 is an apocalyptic number.

1125744000 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 1125744000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909440000).

1125744000 is an abundant number, since it is smaller than the sum of its proper divisors (2693136000).

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

1125744000 is an equidigital number, since it uses as much as digits as its factorization.

1125744000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1125744000 is about 33552.1087265763. The cubic root of 1125744000 is about 1040.2711324643.

The spelling of 1125744000 in words is "one billion, one hundred twenty-five million, seven hundred forty-four thousand".