342509239 has 2 divisors, whose sum is σ = 342509240. Its totient is φ = 342509238.

The previous prime is 342509207. The next prime is 342509243. The reversal of 342509239 is 932905243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342509239 - 2⁵ = 342509207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342509198 and 342509207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342509249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171254619 + 171254620.

It is an arithmetic number, because the mean of its divisors is an integer number (171254620).

Almost surely, 2^342509239 is an apocalyptic number.

342509239 is a deficient number, since it is larger than the sum of its proper divisors (1).

342509239 is an equidigital number, since it uses as much as digits as its factorization.

342509239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 342509239 is about 18507.0051331921. The cubic root of 342509239 is about 699.6659896293.

The spelling of 342509239 in words is "three hundred forty-two million, five hundred nine thousand, two hundred thirty-nine".