342005161 has 4 divisors (see below), whose sum is σ = 342249300. Its totient is φ = 341761024.

The previous prime is 342005159. The next prime is 342005177. The reversal of 342005161 is 161500243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55041561 + 286963600 = 7419^2 + 16940^2 .

It is a cyclic number.

It is not a de Polignac number, because 342005161 - 2¹ = 342005159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342095161) 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 in 3 ways as a sum of consecutive naturals, for example, 119956 + ... + 122773.

It is an arithmetic number, because the mean of its divisors is an integer number (85562325).

Almost surely, 2^342005161 is an apocalyptic number.

It is an amenable number.

342005161 is a deficient number, since it is larger than the sum of its proper divisors (244139).

342005161 is a wasteful number, since it uses less digits than its factorization.

342005161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244138.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 342005161 is about 18493.3815458396. The cubic root of 342005161 is about 699.3225834252.

The spelling of 342005161 in words is "three hundred forty-two million, five thousand, one hundred sixty-one".