11126491 has 4 divisors (see below), whose sum is σ = 11136312. Its totient is φ = 11116672.

The previous prime is 11126477. The next prime is 11126497. The reversal of 11126491 is 19462111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11126491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11126497) 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, 2950 + ... + 5563.

It is an arithmetic number, because the mean of its divisors is an integer number (2784078).

Almost surely, 2^11126491 is an apocalyptic number.

11126491 is a deficient number, since it is larger than the sum of its proper divisors (9821).

11126491 is an equidigital number, since it uses as much as digits as its factorization.

11126491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820.

The product of its digits is 432, while the sum is 25.

The square root of 11126491 is about 3335.6395188929. The cubic root of 11126491 is about 223.2472272700.

The spelling of 11126491 in words is "eleven million, one hundred twenty-six thousand, four hundred ninety-one".