1128888975 has 12 divisors (see below), whose sum is σ = 1866429896. Its totient is φ = 602074080.

The previous prime is 1128888973. The next prime is 1128888977. The reversal of 1128888975 is 5798888211.

1128888975 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1128888973) and next prime (1128888977).

It is not a de Polignac number, because 1128888975 - 2¹ = 1128888973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128888973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7525852 + ... + 7526001.

Almost surely, 2^1128888975 is an apocalyptic number.

1128888975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1128888975 is a deficient number, since it is larger than the sum of its proper divisors (737540921).

1128888975 is a wasteful number, since it uses less digits than its factorization.

1128888975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15051866 (or 15051861 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 57.

The square root of 1128888975 is about 33598.9430637334. The cubic root of 1128888975 is about 1041.2389619744.

The spelling of 1128888975 in words is "one billion, one hundred twenty-eight million, eight hundred eighty-eight thousand, nine hundred seventy-five".