1143224 has 8 divisors (see below), whose sum is σ = 2143560. Its totient is φ = 571608.

The previous prime is 1143223. The next prime is 1143227. The reversal of 1143224 is 4223411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1143224² = 2613922228352, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71444 + ... + 71459.

It is an arithmetic number, because the mean of its divisors is an integer number (267945).

2^1143224 is an apocalyptic number.

It is an amenable number.

1143224 is a deficient number, since it is larger than the sum of its proper divisors (1000336).

1143224 is a wasteful number, since it uses less digits than its factorization.

1143224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142909 (or 142905 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 1143224 is about 1069.2165355998. The cubic root of 1143224 is about 104.5627775385.

Adding to 1143224 its reverse (4223411), we get a palindrome (5366635).

The spelling of 1143224 in words is "one million, one hundred forty-three thousand, two hundred twenty-four".