11128965 has 32 divisors (see below), whose sum is σ = 19854720. Its totient is φ = 5289984.

The previous prime is 11128951. The next prime is 11128973. The reversal of 11128965 is 56982111.

It is not a de Polignac number, because 11128965 - 2⁸ = 11128709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3697 + ... + 5993.

It is an arithmetic number, because the mean of its divisors is an integer number (620460).

Almost surely, 2^11128965 is an apocalyptic number.

11128965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11128965 is a deficient number, since it is larger than the sum of its proper divisors (8725755).

11128965 is a wasteful number, since it uses less digits than its factorization.

11128965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341.

The product of its digits is 4320, while the sum is 33.

The square root of 11128965 is about 3336.0103417106. The cubic root of 11128965 is about 223.2637725494.

The spelling of 11128965 in words is "eleven million, one hundred twenty-eight thousand, nine hundred sixty-five".