1126091 has 4 divisors (see below), whose sum is σ = 1147392. Its totient is φ = 1104792.

The previous prime is 1126067. The next prime is 1126093. The reversal of 1126091 is 1906211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1126091 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10571 + ... + 10676.

It is an arithmetic number, because the mean of its divisors is an integer number (286848).

2^1126091 is an apocalyptic number.

1126091 is a deficient number, since it is larger than the sum of its proper divisors (21301).

1126091 is an equidigital number, since it uses as much as digits as its factorization.

1126091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21300.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1126091 is about 1061.1743494827. The cubic root of 1126091 is about 104.0378006082.

The spelling of 1126091 in words is "one million, one hundred twenty-six thousand, ninety-one".