6222143 has 4 divisors (see below), whose sum is σ = 6366888. Its totient is φ = 6077400.

The previous prime is 6222113. The next prime is 6222149. The reversal of 6222143 is 3412226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3412226 = 2 ⋅1706113.

It is a cyclic number.

It is not a de Polignac number, because 6222143 - 2¹⁰ = 6221119 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 (6222149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72308 + ... + 72393.

It is an arithmetic number, because the mean of its divisors is an integer number (1591722).

Almost surely, 2^6222143 is an apocalyptic number.

6222143 is a deficient number, since it is larger than the sum of its proper divisors (144745).

6222143 is a wasteful number, since it uses less digits than its factorization.

6222143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144744.

The product of its digits is 576, while the sum is 20.

The square root of 6222143 is about 2494.4223780266. The cubic root of 6222143 is about 183.9274978217.

Adding to 6222143 its reverse (3412226), we get a palindrome (9634369).

The spelling of 6222143 in words is "six million, two hundred twenty-two thousand, one hundred forty-three".