344085139 has 2 divisors, whose sum is σ = 344085140. Its totient is φ = 344085138.

The previous prime is 344085103. The next prime is 344085179. The reversal of 344085139 is 931580443.

It is a weak prime.

It is an emirp because it is prime and its reverse (931580443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344085139 - 2²³ = 335696531 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 344085098 and 344085107.

It is not a weakly prime, because it can be changed into another prime (344085179) 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, 172042569 + 172042570.

It is an arithmetic number, because the mean of its divisors is an integer number (172042570).

Almost surely, 2^344085139 is an apocalyptic number.

344085139 is a deficient number, since it is larger than the sum of its proper divisors (1).

344085139 is an equidigital number, since it uses as much as digits as its factorization.

344085139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 344085139 is about 18549.5320426150. The cubic root of 344085139 is about 700.7374126982.

The spelling of 344085139 in words is "three hundred forty-four million, eighty-five thousand, one hundred thirty-nine".