4509013 has 2 divisors, whose sum is σ = 4509014. Its totient is φ = 4509012.

The previous prime is 4508983. The next prime is 4509017. The reversal of 4509013 is 3109054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2486929 + 2022084 = 1577^2 + 1422^2 .

It is a cyclic number.

It is not a de Polignac number, because 4509013 - 2⁹ = 4508501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4509017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254506 + 2254507.

It is an arithmetic number, because the mean of its divisors is an integer number (2254507).

Almost surely, 2^4509013 is an apocalyptic number.

It is an amenable number.

4509013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4509013 is an equidigital number, since it uses as much as digits as its factorization.

4509013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 4509013 is about 2123.4436653700. The cubic root of 4509013 is about 165.2065121615.

The spelling of 4509013 in words is "four million, five hundred nine thousand, thirteen".