343160921 has 2 divisors, whose sum is σ = 343160922. Its totient is φ = 343160920.

The previous prime is 343160893. The next prime is 343160971. The reversal of 343160921 is 129061343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329023321 + 14137600 = 18139^2 + 3760^2 .

It is an emirp because it is prime and its reverse (129061343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343160921 - 2¹⁰ = 343159897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343160971) 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, 171580460 + 171580461.

It is an arithmetic number, because the mean of its divisors is an integer number (171580461).

Almost surely, 2^343160921 is an apocalyptic number.

It is an amenable number.

343160921 is a deficient number, since it is larger than the sum of its proper divisors (1).

343160921 is an equidigital number, since it uses as much as digits as its factorization.

343160921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 343160921 is about 18524.6031266529. The cubic root of 343160921 is about 700.1094529529.

The spelling of 343160921 in words is "three hundred forty-three million, one hundred sixty thousand, nine hundred twenty-one".