5018309 has 2 divisors, whose sum is σ = 5018310. Its totient is φ = 5018308.

The previous prime is 5018297. The next prime is 5018323. The reversal of 5018309 is 9038105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4190209 + 828100 = 2047^2 + 910^2 .

It is a cyclic number.

It is not a de Polignac number, because 5018309 - 2²⁰ = 3969733 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5018369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509154 + 2509155.

It is an arithmetic number, because the mean of its divisors is an integer number (2509155).

Almost surely, 2^5018309 is an apocalyptic number.

It is an amenable number.

5018309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5018309 is an equidigital number, since it uses as much as digits as its factorization.

5018309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 5018309 is about 2240.1582533384. The cubic root of 5018309 is about 171.2060600855.

The spelling of 5018309 in words is "five million, eighteen thousand, three hundred nine".