216055339 has 2 divisors, whose sum is σ = 216055340. Its totient is φ = 216055338.

The previous prime is 216055319. The next prime is 216055387. The reversal of 216055339 is 933550612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216055339 - 2⁷ = 216055211 is a prime.

It is not a weakly prime, because it can be changed into another prime (216055319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108027669 + 108027670.

It is an arithmetic number, because the mean of its divisors is an integer number (108027670).

Almost surely, 2^216055339 is an apocalyptic number.

216055339 is a deficient number, since it is larger than the sum of its proper divisors (1).

216055339 is an equidigital number, since it uses as much as digits as its factorization.

216055339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 216055339 is about 14698.8210071420. The cubic root of 216055339 is about 600.0512354396.

The spelling of 216055339 in words is "two hundred sixteen million, fifty-five thousand, three hundred thirty-nine".