1125386844 has 48 divisors (see below), whose sum is σ = 2681955360. Its totient is φ = 367206400.

The previous prime is 1125386839. The next prime is 1125386881. The reversal of 1125386844 is 4486835211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1125386796 and 1125386805.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102652 + ... + 113084.

It is an arithmetic number, because the mean of its divisors is an integer number (55874070).

Almost surely, 2^1125386844 is an apocalyptic number.

It is an amenable number.

1125386844 is an abundant number, since it is smaller than the sum of its proper divisors (1556568516).

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

1125386844 is a wasteful number, since it uses less digits than its factorization.

1125386844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10630 (or 10628 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 1125386844 is about 33546.7858967145. The cubic root of 1125386844 is about 1040.1611079308.

The spelling of 1125386844 in words is "one billion, one hundred twenty-five million, three hundred eighty-six thousand, eight hundred forty-four".