6228143 has 4 divisors (see below), whose sum is σ = 6555960. Its totient is φ = 5900328.

The previous prime is 6228139. The next prime is 6228203. The reversal of 6228143 is 3418226.

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 6228143 - 2² = 6228139 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 (6228743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163880 + ... + 163917.

It is an arithmetic number, because the mean of its divisors is an integer number (1638990).

Almost surely, 2^6228143 is an apocalyptic number.

6228143 is a deficient number, since it is larger than the sum of its proper divisors (327817).

6228143 is a wasteful number, since it uses less digits than its factorization.

6228143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327816.

The product of its digits is 2304, while the sum is 26.

The square root of 6228143 is about 2495.6247714751. The cubic root of 6228143 is about 183.9865991343.

The spelling of 6228143 in words is "six million, two hundred twenty-eight thousand, one hundred forty-three".