3221143 has 4 divisors (see below), whose sum is σ = 3410640. Its totient is φ = 3031648.

The previous prime is 3221137. The next prime is 3221167. The reversal of 3221143 is 3411223.

It is a happy number.

3221143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3221143 - 2⁵ = 3221111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221123) 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, 94723 + ... + 94756.

It is an arithmetic number, because the mean of its divisors is an integer number (852660).

Almost surely, 2^3221143 is an apocalyptic number.

3221143 is a deficient number, since it is larger than the sum of its proper divisors (189497).

3221143 is a wasteful number, since it uses less digits than its factorization.

3221143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189496.

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

The square root of 3221143 is about 1794.7543007331. The cubic root of 3221143 is about 147.6850956000.

Adding to 3221143 its reverse (3411223), we get a palindrome (6632366).

It can be divided in two parts, 3221 and 143, that added together give a square (3364 = 58²).

The spelling of 3221143 in words is "three million, two hundred twenty-one thousand, one hundred forty-three".