343165681 has 8 divisors (see below), whose sum is σ = 361373760. Its totient is φ = 325231632.

The previous prime is 343165673. The next prime is 343165703. The reversal of 343165681 is 186561343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343165681 - 2³ = 343165673 is a prime.

It is a super-2 number, since 2×343165681² = 235525369232387522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343165681.

It is not an unprimeable number, because it can be changed into a prime (343165601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65935 + ... + 70948.

It is an arithmetic number, because the mean of its divisors is an integer number (45171720).

Almost surely, 2^343165681 is an apocalyptic number.

It is an amenable number.

343165681 is a deficient number, since it is larger than the sum of its proper divisors (18208079).

343165681 is a wasteful number, since it uses less digits than its factorization.

343165681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137015.

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

The square root of 343165681 is about 18524.7316039936. The cubic root of 343165681 is about 700.1126900208.

The spelling of 343165681 in words is "three hundred forty-three million, one hundred sixty-five thousand, six hundred eighty-one".