5240243 has 2 divisors, whose sum is σ = 5240244. Its totient is φ = 5240242.

The previous prime is 5240239. The next prime is 5240299. The reversal of 5240243 is 3420425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5240243 - 2² = 5240239 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5240843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2620121 + 2620122.

It is an arithmetic number, because the mean of its divisors is an integer number (2620122).

Almost surely, 2^5240243 is an apocalyptic number.

5240243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5240243 is an equidigital number, since it uses as much as digits as its factorization.

5240243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 5240243 is about 2289.1577053580. The cubic root of 5240243 is about 173.6935969296.

Adding to 5240243 its reverse (3420425), we get a palindrome (8660668).

The spelling of 5240243 in words is "five million, two hundred forty thousand, two hundred forty-three".