344156161 has 2 divisors, whose sum is σ = 344156162. Its totient is φ = 344156160.

The previous prime is 344156053. The next prime is 344156171. The reversal of 344156161 is 161651443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323280400 + 20875761 = 17980^2 + 4569^2 .

It is an emirp because it is prime and its reverse (161651443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344156161 - 2¹¹ = 344154113 is a prime.

It is not a weakly prime, because it can be changed into another prime (344156171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172078080 + 172078081.

It is an arithmetic number, because the mean of its divisors is an integer number (172078081).

Almost surely, 2^344156161 is an apocalyptic number.

It is an amenable number.

344156161 is a deficient number, since it is larger than the sum of its proper divisors (1).

344156161 is an equidigital number, since it uses as much as digits as its factorization.

344156161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 344156161 is about 18551.4463317554. The cubic root of 344156161 is about 700.7856220347.

The spelling of 344156161 in words is "three hundred forty-four million, one hundred fifty-six thousand, one hundred sixty-one".