1128965 has 16 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 857472.

The previous prime is 1128949. The next prime is 1128977. The reversal of 1128965 is 5698211.

It is a cyclic number.

It is not a de Polignac number, because 1128965 - 2⁴ = 1128949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12641 + ... + 12729.

It is an arithmetic number, because the mean of its divisors is an integer number (89100).

2^1128965 is an apocalyptic number.

It is an amenable number.

1128965 is a deficient number, since it is larger than the sum of its proper divisors (296635).

1128965 is an equidigital number, since it uses as much as digits as its factorization.

1128965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its digits is 4320, while the sum is 32.

The square root of 1128965 is about 1062.5276466991. The cubic root of 1128965 is about 104.1262335520.

The spelling of 1128965 in words is "one million, one hundred twenty-eight thousand, nine hundred sixty-five".