1143222 has 8 divisors (see below), whose sum is σ = 2286456. Its totient is φ = 381072.

The previous prime is 1143217. The next prime is 1143223. The reversal of 1143222 is 2223411.

1143222 is nontrivially palindromic in base 5.

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

1143222 is an admirable number.

It is an Ulam number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95263 + ... + 95274.

It is an arithmetic number, because the mean of its divisors is an integer number (285807).

2^1143222 is an apocalyptic number.

1143222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143222 is a wasteful number, since it uses less digits than its factorization.

1143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190542.

The product of its digits is 96, while the sum is 15.

The square root of 1143222 is about 1069.2156003351. The cubic root of 1143222 is about 104.5627165630.

Adding to 1143222 its reverse (2223411), we get a palindrome (3366633).

The spelling of 1143222 in words is "one million, one hundred forty-three thousand, two hundred twenty-two".