216030049 has 2 divisors, whose sum is σ = 216030050. Its totient is φ = 216030048.

The previous prime is 216029987. The next prime is 216030071. The reversal of 216030049 is 940030612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152349649 + 63680400 = 12343^2 + 7980^2 .

It is a cyclic number.

It is not a de Polignac number, because 216030049 - 2¹⁵ = 215997281 is a prime.

It is not a weakly prime, because it can be changed into another prime (216030079) 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 as a sum of consecutive naturals, namely, 108015024 + 108015025.

It is an arithmetic number, because the mean of its divisors is an integer number (108015025).

Almost surely, 2^216030049 is an apocalyptic number.

It is an amenable number.

216030049 is a deficient number, since it is larger than the sum of its proper divisors (1).

216030049 is an equidigital number, since it uses as much as digits as its factorization.

216030049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 216030049 is about 14697.9607088875. The cubic root of 216030049 is about 600.0278218580.

The spelling of 216030049 in words is "two hundred sixteen million, thirty thousand, forty-nine".