342914909 has 2 divisors, whose sum is σ = 342914910. Its totient is φ = 342914908.

The previous prime is 342914851. The next prime is 342914933. The reversal of 342914909 is 909419243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332332900 + 10582009 = 18230^2 + 3253^2 .

It is an emirp because it is prime and its reverse (909419243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342914909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342914959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171457454 + 171457455.

It is an arithmetic number, because the mean of its divisors is an integer number (171457455).

Almost surely, 2^342914909 is an apocalyptic number.

It is an amenable number.

342914909 is a deficient number, since it is larger than the sum of its proper divisors (1).

342914909 is an equidigital number, since it uses as much as digits as its factorization.

342914909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 342914909 is about 18517.9617938908. The cubic root of 342914909 is about 699.9421101786.

The spelling of 342914909 in words is "three hundred forty-two million, nine hundred fourteen thousand, nine hundred nine".