1143331 has 8 divisors (see below), whose sum is σ = 1314144. Its totient is φ = 974400.

The previous prime is 1143299. The next prime is 1143341. The reversal of 1143331 is 1333411.

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

It is not a de Polignac number, because 1143331 - 2⁵ = 1143299 is a prime.

It is a super-2 number, since 2×1143331² = 2614411551122, which contains 22 as substring.

It is a Duffinian number.

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, 1281 + ... + 1981.

It is an arithmetic number, because the mean of its divisors is an integer number (164268).

2^1143331 is an apocalyptic number.

1143331 is a deficient number, since it is larger than the sum of its proper divisors (170813).

1143331 is an equidigital number, since it uses as much as digits as its factorization.

1143331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its digits is 108, while the sum is 16.

The square root of 1143331 is about 1069.2665710664. The cubic root of 1143331 is about 104.5660396195.

Adding to 1143331 its reverse (1333411), we get a palindrome (2476742).

The spelling of 1143331 in words is "one million, one hundred forty-three thousand, three hundred thirty-one".