1143321 has 8 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 758352.

The previous prime is 1143299. The next prime is 1143341. The reversal of 1143321 is 1233411.

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

It is not a de Polignac number, because 1143321 - 2⁶ = 1143257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1143321.

It is not an unprimeable number, because it can be changed into a prime (1143341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

2^1143321 is an apocalyptic number.

It is an amenable number.

1143321 is a deficient number, since it is larger than the sum of its proper divisors (388839).

1143321 is a wasteful number, since it uses less digits than its factorization.

1143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its digits is 72, while the sum is 15.

The square root of 1143321 is about 1069.2618949537. The cubic root of 1143321 is about 104.5657347608.

Adding to 1143321 its reverse (1233411), we get a palindrome (2376732).

The spelling of 1143321 in words is "one million, one hundred forty-three thousand, three hundred twenty-one".