342365509 has 2 divisors, whose sum is σ = 342365510. Its totient is φ = 342365508.

The previous prime is 342365483. The next prime is 342365549. The reversal of 342365509 is 905563243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324540225 + 17825284 = 18015^2 + 4222^2 .

It is a cyclic number.

It is not a de Polignac number, because 342365509 - 2¹⁵ = 342332741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342365549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171182754 + 171182755.

It is an arithmetic number, because the mean of its divisors is an integer number (171182755).

Almost surely, 2^342365509 is an apocalyptic number.

It is an amenable number.

342365509 is a deficient number, since it is larger than the sum of its proper divisors (1).

342365509 is an equidigital number, since it uses as much as digits as its factorization.

342365509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 342365509 is about 18503.1216015028. The cubic root of 342365509 is about 699.5681070506.

The spelling of 342365509 in words is "three hundred forty-two million, three hundred sixty-five thousand, five hundred nine".