1143235 has 4 divisors (see below), whose sum is σ = 1371888. Its totient is φ = 914584.

The previous prime is 1143227. The next prime is 1143239. The reversal of 1143235 is 5323411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5323411 = 1307 ⋅4073.

It is a cyclic number.

It is not a de Polignac number, because 1143235 - 2³ = 1143227 is a prime.

It is a Duffinian number.

1143235 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1143239) 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, 114319 + ... + 114328.

It is an arithmetic number, because the mean of its divisors is an integer number (342972).

2^1143235 is an apocalyptic number.

1143235 is a deficient number, since it is larger than the sum of its proper divisors (228653).

1143235 is an equidigital number, since it uses as much as digits as its factorization.

1143235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228652.

The product of its digits is 360, while the sum is 19.

The square root of 1143235 is about 1069.2216795408. The cubic root of 1143235 is about 104.5631129020.

Adding to 1143235 its reverse (5323411), we get a palindrome (6466646).

It can be divided in two parts, 1143 and 235, that added together give a triangular number (1378 = T₅₂).

The spelling of 1143235 in words is "one million, one hundred forty-three thousand, two hundred thirty-five".