11442133 has 4 divisors (see below), whose sum is σ = 11452288. Its totient is φ = 11431980.

The previous prime is 11442127. The next prime is 11442143. The reversal of 11442133 is 33124411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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-11442133 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 11442133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442113) 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, 3141 + ... + 5722.

It is an arithmetic number, because the mean of its divisors is an integer number (2863072).

Almost surely, 2^11442133 is an apocalyptic number.

It is an amenable number.

11442133 is a deficient number, since it is larger than the sum of its proper divisors (10155).

11442133 is an equidigital number, since it uses as much as digits as its factorization.

11442133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10154.

The product of its digits is 288, while the sum is 19.

The square root of 11442133 is about 3382.6222076963. The cubic root of 11442133 is about 225.3386374015.

Adding to 11442133 its reverse (33124411), we get a palindrome (44566544).

The spelling of 11442133 in words is "eleven million, four hundred forty-two thousand, one hundred thirty-three".