1133889 has 4 divisors (see below), whose sum is σ = 1511856. Its totient is φ = 755924.

The previous prime is 1133861. The next prime is 1133893. The reversal of 1133889 is 9883311.

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 an emirpimes, since its reverse is a distinct semiprime: 9883311 = 3 ⋅3294437.

It is a cyclic number.

It is not a de Polignac number, because 1133889 - 2⁵ = 1133857 is a prime.

It is a D-number.

1133889 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1133809) 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, 188979 + ... + 188984.

It is an arithmetic number, because the mean of its divisors is an integer number (377964).

2^1133889 is an apocalyptic number.

It is an amenable number.

1133889 is a deficient number, since it is larger than the sum of its proper divisors (377967).

1133889 is an equidigital number, since it uses as much as digits as its factorization.

1133889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377966.

The product of its digits is 5184, while the sum is 33.

The square root of 1133889 is about 1064.8422418368. The cubic root of 1133889 is about 104.2773967756.

The spelling of 1133889 in words is "one million, one hundred thirty-three thousand, eight hundred eighty-nine".