11128865 has 8 divisors (see below), whose sum is σ = 14568768. Its totient is φ = 8093680.

The previous prime is 11128861. The next prime is 11128879. The reversal of 11128865 is 56882111.

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

It is not a de Polignac number, because 11128865 - 2² = 11128861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (11128861) 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, 101117 + ... + 101226.

It is an arithmetic number, because the mean of its divisors is an integer number (1821096).

Almost surely, 2^11128865 is an apocalyptic number.

It is an amenable number.

11128865 is a deficient number, since it is larger than the sum of its proper divisors (3439903).

11128865 is a wasteful number, since it uses less digits than its factorization.

11128865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202359.

The product of its digits is 3840, while the sum is 32.

The square root of 11128865 is about 3335.9953537138. The cubic root of 11128865 is about 223.2631038306.

The spelling of 11128865 in words is "eleven million, one hundred twenty-eight thousand, eight hundred sixty-five".