342010309 has 2 divisors, whose sum is σ = 342010310. Its totient is φ = 342010308.

The previous prime is 342010303. The next prime is 342010343. The reversal of 342010309 is 903010243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173659684 + 168350625 = 13178^2 + 12975^2 .

It is an emirp because it is prime and its reverse (903010243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342010309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342010309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342010303) 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, 171005154 + 171005155.

It is an arithmetic number, because the mean of its divisors is an integer number (171005155).

Almost surely, 2^342010309 is an apocalyptic number.

It is an amenable number.

342010309 is a deficient number, since it is larger than the sum of its proper divisors (1).

342010309 is an equidigital number, since it uses as much as digits as its factorization.

342010309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 342010309 is about 18493.5207302450. The cubic root of 342010309 is about 699.3260922364.

The spelling of 342010309 in words is "three hundred forty-two million, ten thousand, three hundred nine".