5240309 has 2 divisors, whose sum is σ = 5240310. Its totient is φ = 5240308.

The previous prime is 5240303. The next prime is 5240317. The reversal of 5240309 is 9030425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4906225 + 334084 = 2215^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 5240309 - 2¹² = 5236213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5240303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2620154 + 2620155.

It is an arithmetic number, because the mean of its divisors is an integer number (2620155).

Almost surely, 2^5240309 is an apocalyptic number.

It is an amenable number.

5240309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5240309 is an equidigital number, since it uses as much as digits as its factorization.

5240309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 5240309 is about 2289.1721210953. The cubic root of 5240309 is about 173.6943261407.

The spelling of 5240309 in words is "five million, two hundred forty thousand, three hundred nine".