2054009 has 2 divisors, whose sum is σ = 2054010. Its totient is φ = 2054008.

The previous prime is 2053979. The next prime is 2054011. The reversal of 2054009 is 9004502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1951609 + 102400 = 1397^2 + 320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054009 is a prime.

Together with 2054011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2054069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027004 + 1027005.

It is an arithmetic number, because the mean of its divisors is an integer number (1027005).

2^2054009 is an apocalyptic number.

It is an amenable number.

2054009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054009 is an equidigital number, since it uses as much as digits as its factorization.

2054009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2054009 is about 1433.1814260588. The cubic root of 2054009 is about 127.1161646131.

The spelling of 2054009 in words is "two million, fifty-four thousand, nine".