1125912644 has 24 divisors (see below), whose sum is σ = 2023605528. Its totient is φ = 547810560.

The previous prime is 1125912611. The next prime is 1125912757. The reversal of 1125912644 is 4462195211.

It can be written as a sum of positive squares in 4 ways, for example, as 9684544 + 1116228100 = 3112^2 + 33410^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56462 + ... + 73754.

It is an arithmetic number, because the mean of its divisors is an integer number (84316897).

Almost surely, 2^1125912644 is an apocalyptic number.

It is an amenable number.

1125912644 is a deficient number, since it is larger than the sum of its proper divisors (897692884).

1125912644 is a wasteful number, since it uses less digits than its factorization.

1125912644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17735 (or 17733 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 1125912644 is about 33554.6217978984. The cubic root of 1125912644 is about 1040.3230764009.

The spelling of 1125912644 in words is "one billion, one hundred twenty-five million, nine hundred twelve thousand, six hundred forty-four".