1143535 has 4 divisors (see below), whose sum is σ = 1372248. Its totient is φ = 914824.

The previous prime is 1143529. The next prime is 1143551. The reversal of 1143535 is 5353411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1143535 - 2⁷ = 1143407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114349 + ... + 114358.

It is an arithmetic number, because the mean of its divisors is an integer number (343062).

2^1143535 is an apocalyptic number.

1143535 is a deficient number, since it is larger than the sum of its proper divisors (228713).

1143535 is an equidigital number, since it uses as much as digits as its factorization.

1143535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228712.

The product of its digits is 900, while the sum is 22.

The square root of 1143535 is about 1069.3619593010. The cubic root of 1143535 is about 104.5722583505.

Adding to 1143535 its reverse (5353411), we get a palindrome (6496946).

The spelling of 1143535 in words is "one million, one hundred forty-three thousand, five hundred thirty-five".