2009844143 has 2 divisors, whose sum is σ = 2009844144. Its totient is φ = 2009844142.

The previous prime is 2009844071. The next prime is 2009844157. The reversal of 2009844143 is 3414489002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2009844143 - 2²² = 2005649839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009844743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004922071 + 1004922072.

It is an arithmetic number, because the mean of its divisors is an integer number (1004922072).

Almost surely, 2^2009844143 is an apocalyptic number.

2009844143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009844143 is an equidigital number, since it uses as much as digits as its factorization.

2009844143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 2009844143 is about 44831.2853150565. The cubic root of 2009844143 is about 1261.9848080982.

The spelling of 2009844143 in words is "two billion, nine million, eight hundred forty-four thousand, one hundred forty-three".