1125321444 has 96 divisors (see below), whose sum is σ = 3174698240. Its totient is φ = 342641664.

The previous prime is 1125321403. The next prime is 1125321469. The reversal of 1125321444 is 4441235211.

1125321444 is a `hidden beast` number, since 112 + 532 + 14 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132057 + ... + 140319.

Almost surely, 2^1125321444 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 1125321444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587349120).

1125321444 is an abundant number, since it is smaller than the sum of its proper divisors (2049376796).

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

1125321444 is a wasteful number, since it uses less digits than its factorization.

1125321444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8386 (or 8378 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1125321444 is about 33545.8111244906. The cubic root of 1125321444 is about 1040.1409584582.

Adding to 1125321444 its reverse (4441235211), we get a palindrome (5566556655).

The spelling of 1125321444 in words is "one billion, one hundred twenty-five million, three hundred twenty-one thousand, four hundred forty-four".