342761 has 2 divisors, whose sum is σ = 342762. Its totient is φ = 342760.

The previous prime is 342757. The next prime is 342791. The reversal of 342761 is 167243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 72361 = 520^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 342761 - 2² = 342757 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171380 + 171381.

It is an arithmetic number, because the mean of its divisors is an integer number (171381).

2³⁴²⁷⁶¹ is an apocalyptic number.

It is an amenable number.

342761 is a deficient number, since it is larger than the sum of its proper divisors (1).

342761 is an equidigital number, since it uses as much as digits as its factorization.

342761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 23.

The square root of 342761 is about 585.4579404193. The cubic root of 342761 is about 69.9837377189.

The spelling of 342761 in words is "three hundred forty-two thousand, seven hundred sixty-one".