342322861 has 2 divisors, whose sum is σ = 342322862. Its totient is φ = 342322860.

The previous prime is 342322847. The next prime is 342322909. The reversal of 342322861 is 168223243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282878761 + 59444100 = 16819^2 + 7710^2 .

It is an emirp because it is prime and its reverse (168223243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342322861 - 2¹⁹ = 341798573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342322831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171161430 + 171161431.

It is an arithmetic number, because the mean of its divisors is an integer number (171161431).

Almost surely, 2^342322861 is an apocalyptic number.

It is an amenable number.

342322861 is a deficient number, since it is larger than the sum of its proper divisors (1).

342322861 is an equidigital number, since it uses as much as digits as its factorization.

342322861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 31.

The square root of 342322861 is about 18501.9691114216. The cubic root of 342322861 is about 699.5390577658.

The spelling of 342322861 in words is "three hundred forty-two million, three hundred twenty-two thousand, eight hundred sixty-one".