1128165 has 8 divisors (see below), whose sum is σ = 1805088. Its totient is φ = 601680.

The previous prime is 1128161. The next prime is 1128181. The reversal of 1128165 is 5618211.

1128165 = T₄₇₀ + T₄₇₁ + ... + T₄₇₉.

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

It is not a de Polignac number, because 1128165 - 2² = 1128161 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37591 + ... + 37620.

It is an arithmetic number, because the mean of its divisors is an integer number (225636).

2^1128165 is an apocalyptic number.

1128165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1128165 is a deficient number, since it is larger than the sum of its proper divisors (676923).

1128165 is an equidigital number, since it uses as much as digits as its factorization.

1128165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75219.

The product of its digits is 480, while the sum is 24.

The square root of 1128165 is about 1062.1511191916. The cubic root of 1128165 is about 104.1016326504.

The spelling of 1128165 in words is "one million, one hundred twenty-eight thousand, one hundred sixty-five".