9042239 has 2 divisors, whose sum is σ = 9042240. Its totient is φ = 9042238.

The previous prime is 9042223. The next prime is 9042251. The reversal of 9042239 is 9322409.

9042239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9042239 - 2⁴ = 9042223 is a prime.

It is a super-2 number, since 2×9042239² = 163524172266242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9042739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4521119 + 4521120.

It is an arithmetic number, because the mean of its divisors is an integer number (4521120).

Almost surely, 2^9042239 is an apocalyptic number.

9042239 is a deficient number, since it is larger than the sum of its proper divisors (1).

9042239 is an equidigital number, since it uses as much as digits as its factorization.

9042239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 9042239 is about 3007.0315927838. The cubic root of 9042239 is about 208.3332844089. Note that the first 3 decimals are identical.

The spelling of 9042239 in words is "nine million, forty-two thousand, two hundred thirty-nine".