343128061 has 4 divisors (see below), whose sum is σ = 344403900. Its totient is φ = 341852224.

The previous prime is 343128013. The next prime is 343128083. The reversal of 343128061 is 160821343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160821343 = 17 ⋅9460079.

It can be written as a sum of positive squares in 2 ways, for example, as 7322436 + 335805625 = 2706^2 + 18325^2 .

It is a cyclic number.

It is not a de Polignac number, because 343128061 - 2¹¹ = 343126013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343128001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637516 + ... + 638053.

It is an arithmetic number, because the mean of its divisors is an integer number (86100975).

Almost surely, 2^343128061 is an apocalyptic number.

It is an amenable number.

343128061 is a deficient number, since it is larger than the sum of its proper divisors (1275839).

343128061 is a wasteful number, since it uses less digits than its factorization.

343128061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275838.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 343128061 is about 18523.7161768367. The cubic root of 343128061 is about 700.0871054870.

The spelling of 343128061 in words is "three hundred forty-three million, one hundred twenty-eight thousand, sixty-one".