11075921 has 4 divisors (see below), whose sum is σ = 11174052. Its totient is φ = 10977792.

The previous prime is 11075881. The next prime is 11075923. The reversal of 11075921 is 12957011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12957011 = 3391 ⋅3821.

It can be written as a sum of positive squares in 2 ways, for example, as 4999696 + 6076225 = 2236^2 + 2465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11075921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11075923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48896 + ... + 49121.

It is an arithmetic number, because the mean of its divisors is an integer number (2793513).

Almost surely, 2^11075921 is an apocalyptic number.

It is an amenable number.

11075921 is a deficient number, since it is larger than the sum of its proper divisors (98131).

11075921 is an equidigital number, since it uses as much as digits as its factorization.

11075921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98130.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 11075921 is about 3328.0506306245. The cubic root of 11075921 is about 222.9084933601.

The spelling of 11075921 in words is "eleven million, seventy-five thousand, nine hundred twenty-one".