343982161 has 2 divisors, whose sum is σ = 343982162. Its totient is φ = 343982160.

The previous prime is 343982153. The next prime is 343982179. The reversal of 343982161 is 161289343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313113025 + 30869136 = 17695^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 343982161 - 2³ = 343982153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343982161.

It is not a weakly prime, because it can be changed into another prime (343982101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171991080 + 171991081.

It is an arithmetic number, because the mean of its divisors is an integer number (171991081).

Almost surely, 2^343982161 is an apocalyptic number.

It is an amenable number.

343982161 is a deficient number, since it is larger than the sum of its proper divisors (1).

343982161 is an equidigital number, since it uses as much as digits as its factorization.

343982161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 343982161 is about 18546.7560775463. The cubic root of 343982161 is about 700.6675000234.

The spelling of 343982161 in words is "three hundred forty-three million, nine hundred eighty-two thousand, one hundred sixty-one".