216934241 has 2 divisors, whose sum is σ = 216934242. Its totient is φ = 216934240.

The previous prime is 216934213. The next prime is 216934253. The reversal of 216934241 is 142439612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199628641 + 17305600 = 14129^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 216934241 - 2¹⁸ = 216672097 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 216934198 and 216934207.

It is not a weakly prime, because it can be changed into another prime (216931241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108467120 + 108467121.

It is an arithmetic number, because the mean of its divisors is an integer number (108467121).

Almost surely, 2^216934241 is an apocalyptic number.

It is an amenable number.

216934241 is a deficient number, since it is larger than the sum of its proper divisors (1).

216934241 is an equidigital number, since it uses as much as digits as its factorization.

216934241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 216934241 is about 14728.6876876387. The cubic root of 216934241 is about 600.8637938000.

The spelling of 216934241 in words is "two hundred sixteen million, nine hundred thirty-four thousand, two hundred forty-one".