9315239 has 2 divisors, whose sum is σ = 9315240. Its totient is φ = 9315238.

The previous prime is 9315223. The next prime is 9315247. The reversal of 9315239 is 9325139.

9315239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (9325139) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9315239 - 2⁴ = 9315223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9315289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4657619 + 4657620.

It is an arithmetic number, because the mean of its divisors is an integer number (4657620).

Almost surely, 2^9315239 is an apocalyptic number.

9315239 is a deficient number, since it is larger than the sum of its proper divisors (1).

9315239 is an equidigital number, since it uses as much as digits as its factorization.

9315239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 32.

The square root of 9315239 is about 3052.0876461858. The cubic root of 9315239 is about 210.4091720016.

The spelling of 9315239 in words is "nine million, three hundred fifteen thousand, two hundred thirty-nine".