1128459705 has 8 divisors (see below), whose sum is σ = 1805535552. Its totient is φ = 601845168.

The previous prime is 1128459701. The next prime is 1128459721. The reversal of 1128459705 is 5079548211.

1128459705 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1128459705 - 2² = 1128459701 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1128459701) 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, 37615309 + ... + 37615338.

It is an arithmetic number, because the mean of its divisors is an integer number (225691944).

Almost surely, 2^1128459705 is an apocalyptic number.

1128459705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1128459705 is a deficient number, since it is larger than the sum of its proper divisors (677075847).

1128459705 is an equidigital number, since it uses as much as digits as its factorization.

1128459705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75230655.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 1128459705 is about 33592.5543089536. The cubic root of 1128459705 is about 1041.1069651391.

The spelling of 1128459705 in words is "one billion, one hundred twenty-eight million, four hundred fifty-nine thousand, seven hundred five".