216246133 has 2 divisors, whose sum is σ = 216246134. Its totient is φ = 216246132.

The previous prime is 216246119. The next prime is 216246157. The reversal of 216246133 is 331642612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209728324 + 6517809 = 14482^2 + 2553^2 .

It is a cyclic number.

It is not a de Polignac number, because 216246133 - 2⁵ = 216246101 is a prime.

It is equal to p_11927260 and since 216246133 and 11927260 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216246113) 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, 108123066 + 108123067.

It is an arithmetic number, because the mean of its divisors is an integer number (108123067).

Almost surely, 2^216246133 is an apocalyptic number.

It is an amenable number.

216246133 is a deficient number, since it is larger than the sum of its proper divisors (1).

216246133 is an equidigital number, since it uses as much as digits as its factorization.

216246133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 216246133 is about 14705.3096873204. The cubic root of 216246133 is about 600.2278144160.

Adding to 216246133 its reverse (331642612), we get a palindrome (547888745).

The spelling of 216246133 in words is "two hundred sixteen million, two hundred forty-six thousand, one hundred thirty-three".