2023009 has 2 divisors, whose sum is σ = 2023010. Its totient is φ = 2023008.

The previous prime is 2023001. The next prime is 2023013. The reversal of 2023009 is 9003202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1882384 + 140625 = 1372^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023009 - 2³ = 2023001 is a prime.

2023009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2022983 and 2023001.

It is not a weakly prime, because it can be changed into another prime (2023001) 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, 1011504 + 1011505.

It is an arithmetic number, because the mean of its divisors is an integer number (1011505).

2^2023009 is an apocalyptic number.

It is an amenable number.

2023009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023009 is an equidigital number, since it uses as much as digits as its factorization.

2023009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2023009 is about 1422.3252089448. The cubic root of 2023009 is about 126.4734226324.

The spelling of 2023009 in words is "two million, twenty-three thousand, nine".