4069005209 has 2 divisors, whose sum is σ = 4069005210. Its totient is φ = 4069005208.

The previous prime is 4069005169. The next prime is 4069005221. The reversal of 4069005209 is 9025009604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3008851609 + 1060153600 = 54853^2 + 32560^2 .

It is a cyclic number.

It is not a de Polignac number, because 4069005209 - 2¹² = 4069001113 is a prime.

It is not a weakly prime, because it can be changed into another prime (4069005229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2034502604 + 2034502605.

It is an arithmetic number, because the mean of its divisors is an integer number (2034502605).

Almost surely, 2^4069005209 is an apocalyptic number.

It is an amenable number.

4069005209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4069005209 is an equidigital number, since it uses as much as digits as its factorization.

4069005209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 4069005209 is about 63788.7545653621. The cubic root of 4069005209 is about 1596.4773030762.

The spelling of 4069005209 in words is "four billion, sixty-nine million, five thousand, two hundred nine".