1128125480 has 16 divisors (see below), whose sum is σ = 2538282420. Its totient is φ = 451250176.

The previous prime is 1128125473. The next prime is 1128125497. The reversal of 1128125480 is 845218211.

It can be written as a sum of positive squares in 2 ways, for example, as 1123188196 + 4937284 = 33514^2 + 2222^2 .

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, 14101529 + ... + 14101608.

Almost surely, 2^1128125480 is an apocalyptic number.

1128125480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128125480 is an abundant number, since it is smaller than the sum of its proper divisors (1410156940).

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

1128125480 is a wasteful number, since it uses less digits than its factorization.

1128125480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28203148 (or 28203144 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 1128125480 is about 33587.5792518604. The cubic root of 1128125480 is about 1041.0041706448.

The spelling of 1128125480 in words is "one billion, one hundred twenty-eight million, one hundred twenty-five thousand, four hundred eighty".