1125403344 has 120 divisors (see below), whose sum is σ = 3464278272. Its totient is φ = 338883840.

The previous prime is 1125403343. The next prime is 1125403361. The reversal of 1125403344 is 4433045211.

It is a happy number.

1125403344 is a `hidden beast` number, since 112 + 540 + 3 + 3 + 4 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125403343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81589 + ... + 94379.

Almost surely, 2^1125403344 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 1125403344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732139136).

1125403344 is an abundant number, since it is smaller than the sum of its proper divisors (2338874928).

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

1125403344 is a wasteful number, since it uses less digits than its factorization.

1125403344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12865 (or 12856 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1125403344 is about 33547.0318210121. The cubic root of 1125403344 is about 1040.1661913900.

Adding to 1125403344 its reverse (4433045211), we get a palindrome (5558448555).

The spelling of 1125403344 in words is "one billion, one hundred twenty-five million, four hundred three thousand, three hundred forty-four".