2043533309 has 2 divisors, whose sum is σ = 2043533310. Its totient is φ = 2043533308.

The previous prime is 2043533281. The next prime is 2043533341. The reversal of 2043533309 is 9033353402.

It is an a-pointer prime, because the next prime (2043533341) can be obtained adding 2043533309 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2028151225 + 15382084 = 45035^2 + 3922^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043533309 - 2²⁰ = 2042484733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043533389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021766654 + 1021766655.

It is an arithmetic number, because the mean of its divisors is an integer number (1021766655).

Almost surely, 2^2043533309 is an apocalyptic number.

It is an amenable number.

2043533309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043533309 is an equidigital number, since it uses as much as digits as its factorization.

2043533309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 32.

The square root of 2043533309 is about 45205.4566285974. The cubic root of 2043533309 is about 1268.9969364973.

The spelling of 2043533309 in words is "two billion, forty-three million, five hundred thirty-three thousand, three hundred nine".