1128875727 has 8 divisors (see below), whose sum is σ = 1720191616. Its totient is φ = 645071832.

The previous prime is 1128875707. The next prime is 1128875731. The reversal of 1128875727 is 7275788211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128875727 - 2⁸ = 1128875471 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 (1128875707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26877973 + ... + 26878014.

It is an arithmetic number, because the mean of its divisors is an integer number (215023952).

Almost surely, 2^1128875727 is an apocalyptic number.

1128875727 is a deficient number, since it is larger than the sum of its proper divisors (591315889).

1128875727 is an equidigital number, since it uses as much as digits as its factorization.

1128875727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53755997.

The product of its digits is 439040, while the sum is 48.

The square root of 1128875727 is about 33598.7459140963. The cubic root of 1128875727 is about 1041.2348888288.

The spelling of 1128875727 in words is "one billion, one hundred twenty-eight million, eight hundred seventy-five thousand, seven hundred twenty-seven".