1091133 has 12 divisors (see below), whose sum is σ = 1615068. Its totient is φ = 709440.

The previous prime is 1091119. The next prime is 1091137. The reversal of 1091133 is 3311901.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 974169 = 342^2 + 987^2 .

It is not a de Polignac number, because 1091133 - 2⁸ = 1090877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1110 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (134589).

2^1091133 is an apocalyptic number.

It is an amenable number.

1091133 is a deficient number, since it is larger than the sum of its proper divisors (523935).

1091133 is a wasteful number, since it uses less digits than its factorization.

1091133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004 (or 3001 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 1091133 is about 1044.5731185513. The cubic root of 1091133 is about 102.9498923649.

It can be divided in two parts, 10911 and 33, that multiplied together give a palindrome (360063).

The spelling of 1091133 in words is "one million, ninety-one thousand, one hundred thirty-three".