344140211 has 2 divisors, whose sum is σ = 344140212. Its totient is φ = 344140210.

The previous prime is 344140193. The next prime is 344140213. The reversal of 344140211 is 112041443.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344140211 is a prime.

It is a Sophie Germain prime.

Together with 344140213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344140213) 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, 172070105 + 172070106.

It is an arithmetic number, because the mean of its divisors is an integer number (172070106).

Almost surely, 2^344140211 is an apocalyptic number.

344140211 is a deficient number, since it is larger than the sum of its proper divisors (1).

344140211 is an equidigital number, since it uses as much as digits as its factorization.

344140211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 344140211 is about 18551.0164411549. The cubic root of 344140211 is about 700.7747958414.

Adding to 344140211 its reverse (112041443), we get a palindrome (456181654).

The spelling of 344140211 in words is "three hundred forty-four million, one hundred forty thousand, two hundred eleven".