1128745544 has 16 divisors (see below), whose sum is σ = 2138217900. Its totient is φ = 558554112.

The previous prime is 1128745531. The next prime is 1128745591. The reversal of 1128745544 is 4455478211.

It can be written as a sum of positive squares in 2 ways, for example, as 1116228100 + 12517444 = 33410^2 + 3538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726509 + ... + 728060.

Almost surely, 2^1128745544 is an apocalyptic number.

It is an amenable number.

1128745544 is a deficient number, since it is larger than the sum of its proper divisors (1009472356).

1128745544 is a wasteful number, since it uses less digits than its factorization.

1128745544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454672 (or 1454668 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 1128745544 is about 33596.8085389074. The cubic root of 1128745544 is about 1041.1948618978.

The spelling of 1128745544 in words is "one billion, one hundred twenty-eight million, seven hundred forty-five thousand, five hundred forty-four".