1128515888 has 10 divisors (see below), whose sum is σ = 2186499564. Its totient is φ = 564257936.

The previous prime is 1128515881. The next prime is 1128515897. The reversal of 1128515888 is 8885158211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1128515881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35266106 + ... + 35266137.

Almost surely, 2^1128515888 is an apocalyptic number.

It is an amenable number.

1128515888 is a deficient number, since it is larger than the sum of its proper divisors (1057983676).

1128515888 is an equidigital number, since it uses as much as digits as its factorization.

1128515888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70532251 (or 70532245 counting only the distinct ones).

The product of its digits is 204800, while the sum is 47.

The square root of 1128515888 is about 33593.3905404024. The cubic root of 1128515888 is about 1041.1242428324.

The spelling of 1128515888 in words is "one billion, one hundred twenty-eight million, five hundred fifteen thousand, eight hundred eighty-eight".