6421141 has 2 divisors, whose sum is σ = 6421142. Its totient is φ = 6421140.

The previous prime is 6421139. The next prime is 6421157. The reversal of 6421141 is 1411246.

It is the 1035-th star number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4186116 + 2235025 = 2046^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6421141 - 2¹ = 6421139 is a prime.

Together with 6421139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6421111) 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 as a sum of consecutive naturals, namely, 3210570 + 3210571.

It is an arithmetic number, because the mean of its divisors is an integer number (3210571).

Almost surely, 2^6421141 is an apocalyptic number.

It is an amenable number.

6421141 is a deficient number, since it is larger than the sum of its proper divisors (1).

6421141 is an equidigital number, since it uses as much as digits as its factorization.

6421141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 6421141 is about 2533.9970402508. The cubic root of 6421141 is about 185.8677616350.

Adding to 6421141 its reverse (1411246), we get a palindrome (7832387).

The spelling of 6421141 in words is "six million, four hundred twenty-one thousand, one hundred forty-one".