1128265 has 8 divisors (see below), whose sum is σ = 1412928. Its totient is φ = 863280.

The previous prime is 1128251. The next prime is 1128287. The reversal of 1128265 is 5628211.

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

It is not a de Polignac number, because 1128265 - 2⁵ = 1128233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4791 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (176616).

2^1128265 is an apocalyptic number.

It is an amenable number.

1128265 is a deficient number, since it is larger than the sum of its proper divisors (284663).

1128265 is an equidigital number, since it uses as much as digits as its factorization.

1128265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839.

The product of its digits is 960, while the sum is 25.

The square root of 1128265 is about 1062.1981924293. The cubic root of 1128265 is about 104.1047083990.

The spelling of 1128265 in words is "one million, one hundred twenty-eight thousand, two hundred sixty-five".