1143223 has 2 divisors, whose sum is σ = 1143224. Its totient is φ = 1143222.

The previous prime is 1143217. The next prime is 1143227. The reversal of 1143223 is 3223411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143197 and 1143206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571611 + 571612.

It is an arithmetic number, because the mean of its divisors is an integer number (571612).

2^1143223 is an apocalyptic number.

1143223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143223 is an equidigital number, since it uses as much as digits as its factorization.

1143223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 1143223 is about 1069.2160679676. The cubic root of 1143223 is about 104.5627470508.

Adding to 1143223 its reverse (3223411), we get a palindrome (4366634).

It can be divided in two parts, 11 and 43223, that added together give a palindrome (43234).

The spelling of 1143223 in words is "one million, one hundred forty-three thousand, two hundred twenty-three".