1133155 has 4 divisors (see below), whose sum is σ = 1359792. Its totient is φ = 906520.

The previous prime is 1133149. The next prime is 1133159. The reversal of 1133155 is 5513311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5513311 = 41 ⋅134471.

It is not a de Polignac number, because 1133155 - 2³ = 1133147 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 (1133159) 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, 113311 + ... + 113320.

It is an arithmetic number, because the mean of its divisors is an integer number (339948).

2^1133155 is an apocalyptic number.

1133155 is a deficient number, since it is larger than the sum of its proper divisors (226637).

1133155 is an equidigital number, since it uses as much as digits as its factorization.

1133155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226636.

The product of its digits is 225, while the sum is 19.

The square root of 1133155 is about 1064.4975340507. The cubic root of 1133155 is about 104.2548913009.

Adding to 1133155 its reverse (5513311), we get a palindrome (6646466).

The spelling of 1133155 in words is "one million, one hundred thirty-three thousand, one hundred fifty-five".