2009069 has 2 divisors, whose sum is σ = 2009070. Its totient is φ = 2009068.

The previous prime is 2009039. The next prime is 2009083. The reversal of 2009069 is 9609002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1295044 + 714025 = 1138^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2009069 - 2¹⁶ = 1943533 is a prime.

It is a super-2 number, since 2×2009069² = 8072716493522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004534 + 1004535.

It is an arithmetic number, because the mean of its divisors is an integer number (1004535).

2^2009069 is an apocalyptic number.

It is an amenable number.

2009069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009069 is an equidigital number, since it uses as much as digits as its factorization.

2009069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2009069 is about 1417.4163114625. The cubic root of 2009069 is about 126.1822549335.

The spelling of 2009069 in words is "two million, nine thousand, sixty-nine".