11095921 has 4 divisors (see below), whose sum is σ = 11305332. Its totient is φ = 10886512.

The previous prime is 11095919. The next prime is 11095949. The reversal of 11095921 is 12959011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12959011 = 13 ⋅996847.

It can be written as a sum of positive squares in 2 ways, for example, as 5856400 + 5239521 = 2420^2 + 2289^2 .

It is a cyclic number.

It is not a de Polignac number, because 11095921 - 2¹ = 11095919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11095921.

It is not an unprimeable number, because it can be changed into a prime (11095991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104626 + ... + 104731.

It is an arithmetic number, because the mean of its divisors is an integer number (2826333).

Almost surely, 2^11095921 is an apocalyptic number.

It is an amenable number.

11095921 is a deficient number, since it is larger than the sum of its proper divisors (209411).

11095921 is an equidigital number, since it uses as much as digits as its factorization.

11095921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209410.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 11095921 is about 3331.0540373882. The cubic root of 11095921 is about 223.0425827105.

The spelling of 11095921 in words is "eleven million, ninety-five thousand, nine hundred twenty-one".