342315409 has 2 divisors, whose sum is σ = 342315410. Its totient is φ = 342315408.

The previous prime is 342315401. The next prime is 342315427. The reversal of 342315409 is 904513243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342139009 + 176400 = 18497^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 342315409 - 2³ = 342315401 is a prime.

It is not a weakly prime, because it can be changed into another prime (342315401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171157704 + 171157705.

It is an arithmetic number, because the mean of its divisors is an integer number (171157705).

Almost surely, 2^342315409 is an apocalyptic number.

It is an amenable number.

342315409 is a deficient number, since it is larger than the sum of its proper divisors (1).

342315409 is an equidigital number, since it uses as much as digits as its factorization.

342315409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 342315409 is about 18501.7677263552. The cubic root of 342315409 is about 699.5339816583.

The spelling of 342315409 in words is "three hundred forty-two million, three hundred fifteen thousand, four hundred nine".