1125227880 has 384 divisors, whose sum is σ = 4474828800. Its totient is φ = 239500800.

The previous prime is 1125227867. The next prime is 1125227891. The reversal of 1125227880 is 887225211.

It is a super-2 number, since 2×1125227880² = 2532275563858588800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 3399315 + ... + 3399645.

It is an arithmetic number, because the mean of its divisors is an integer number (11653200).

Almost surely, 2^1125227880 is an apocalyptic number.

1125227880 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 1125227880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2237414400).

1125227880 is an abundant number, since it is smaller than the sum of its proper divisors (3349600920).

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

1125227880 is a wasteful number, since it uses less digits than its factorization.

1125227880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 1125227880 is about 33544.4165249599. The cubic root of 1125227880 is about 1040.1121304149.

The spelling of 1125227880 in words is "one billion, one hundred twenty-five million, two hundred twenty-seven thousand, eight hundred eighty".