143222 has 8 divisors (see below), whose sum is σ = 226200. Its totient is φ = 67824.
The previous prime is 143197. The next prime is 143239. The reversal of 143222 is 222341.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×1432223 = 8813541563331144, which contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 143197 and 143206.
It is a congruent number.
It is an unprimeable number.
143222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
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, 1847 + ... + 1922.
It is an arithmetic number, because the mean of its divisors is an integer number (28275).
2143222 is an apocalyptic number.
143222 is a deficient number, since it is larger than the sum of its proper divisors (82978).
143222 is a wasteful number, since it uses less digits than its factorization.
143222 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3790.
The product of its digits is 96, while the sum is 14.
The square root of 143222 is about 378.4468258554. The cubic root of 143222 is about 52.3202621508.
Adding to 143222 its reverse (222341), we get a palindrome (365563).
The spelling of 143222 in words is "one hundred forty-three thousand, two hundred twenty-two", and thus it is an iban number.
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