6221143009 has 2 divisors, whose sum is σ = 6221143010. Its totient is φ = 6221143008.

The previous prime is 6221142997. The next prime is 6221143057. The reversal of 6221143009 is 9003411226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5306685409 + 914457600 = 72847^2 + 30240^2 .

It is a cyclic number.

It is not a de Polignac number, because 6221143009 - 2⁹ = 6221142497 is a prime.

It is not a weakly prime, because it can be changed into another prime (6221144009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110571504 + 3110571505.

It is an arithmetic number, because the mean of its divisors is an integer number (3110571505).

Almost surely, 2^6221143009 is an apocalyptic number.

It is an amenable number.

6221143009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6221143009 is an equidigital number, since it uses as much as digits as its factorization.

6221143009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 6221143009 is about 78874.2227156629. Note that the first 3 decimals coincide. The cubic root of 6221143009 is about 1839.1764399823.

The spelling of 6221143009 in words is "six billion, two hundred twenty-one million, one hundred forty-three thousand, nine".