1128108679 has 4 divisors (see below), whose sum is σ = 1187482840. Its totient is φ = 1068734520.

The previous prime is 1128108677. The next prime is 1128108697. The reversal of 1128108679 is 9768018211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1128108679 - 2¹ = 1128108677 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 (1128108673) 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, 29687052 + ... + 29687089.

It is an arithmetic number, because the mean of its divisors is an integer number (296870710).

Almost surely, 2^1128108679 is an apocalyptic number.

1128108679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1128108679 is a deficient number, since it is larger than the sum of its proper divisors (59374161).

1128108679 is an equidigital number, since it uses as much as digits as its factorization.

1128108679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59374160.

The product of its (nonzero) digits is 48384, while the sum is 43.

The square root of 1128108679 is about 33587.3291435922. The cubic root of 1128108679 is about 1040.9990027806. Note that the first 3 decimals are identical.

The spelling of 1128108679 in words is "one billion, one hundred twenty-eight million, one hundred eight thousand, six hundred seventy-nine".