342288281 has 2 divisors, whose sum is σ = 342288282. Its totient is φ = 342288280.

The previous prime is 342288269. The next prime is 342288301. The reversal of 342288281 is 182882243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192959881 + 149328400 = 13891^2 + 12220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342288281 is a prime.

It is a super-2 number, since 2×342288281² = 234322534619869922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (342288581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171144140 + 171144141.

It is an arithmetic number, because the mean of its divisors is an integer number (171144141).

Almost surely, 2^342288281 is an apocalyptic number.

It is an amenable number.

342288281 is a deficient number, since it is larger than the sum of its proper divisors (1).

342288281 is an equidigital number, since it uses as much as digits as its factorization.

342288281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 38.

The square root of 342288281 is about 18501.0345926924. The cubic root of 342288281 is about 699.5155021521.

The spelling of 342288281 in words is "three hundred forty-two million, two hundred eighty-eight thousand, two hundred eighty-one".