1128125828 has 12 divisors (see below), whose sum is σ = 1975161552. Its totient is φ = 563793960.

The previous prime is 1128125821. The next prime is 1128125861. The reversal of 1128125828 is 8285218211.

It is a junction number, because it is equal to n+sod(n) for n = 1128125791 and 1128125800.

It is not an unprimeable number, because it can be changed into a prime (1128125821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57650 + ... + 74697.

It is an arithmetic number, because the mean of its divisors is an integer number (164596796).

Almost surely, 2^1128125828 is an apocalyptic number.

It is an amenable number.

1128125828 is a deficient number, since it is larger than the sum of its proper divisors (847035724).

1128125828 is a wasteful number, since it uses less digits than its factorization.

1128125828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134482 (or 134480 counting only the distinct ones).

The product of its digits is 20480, while the sum is 38.

The square root of 1128125828 is about 33587.5844323464. The cubic root of 1128125828 is about 1041.0042776865.

The spelling of 1128125828 in words is "one billion, one hundred twenty-eight million, one hundred twenty-five thousand, eight hundred twenty-eight".