1143355 has 8 divisors (see below), whose sum is σ = 1392912. Its totient is φ = 900768.

The previous prime is 1143347. The next prime is 1143371. The reversal of 1143355 is 5533411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143355 - 2³ = 1143347 is a prime.

It is a Duffinian number.

1143355 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372 + ... + 2041.

It is an arithmetic number, because the mean of its divisors is an integer number (174114).

2^1143355 is an apocalyptic number.

1143355 is a deficient number, since it is larger than the sum of its proper divisors (249557).

1143355 is an equidigital number, since it uses as much as digits as its factorization.

1143355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485.

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

The square root of 1143355 is about 1069.2777936533. The cubic root of 1143355 is about 104.5667712733.

Adding to 1143355 its reverse (5533411), we get a palindrome (6676766).

The spelling of 1143355 in words is "one million, one hundred forty-three thousand, three hundred fifty-five".