216334351 has 2 divisors, whose sum is σ = 216334352. Its totient is φ = 216334350.

The previous prime is 216334331. The next prime is 216334381. The reversal of 216334351 is 153433612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216334351 - 2¹⁷ = 216203279 is a prime.

It is a Chen prime.

It is equal to p_11931841 and since 216334351 and 11931841 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 (216334331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108167175 + 108167176.

It is an arithmetic number, because the mean of its divisors is an integer number (108167176).

Almost surely, 2^216334351 is an apocalyptic number.

216334351 is a deficient number, since it is larger than the sum of its proper divisors (1).

216334351 is an equidigital number, since it uses as much as digits as its factorization.

216334351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 216334351 is about 14708.3089102725. The cubic root of 216334351 is about 600.3094246591.

Adding to 216334351 its reverse (153433612), we get a palindrome (369767963).

The spelling of 216334351 in words is "two hundred sixteen million, three hundred thirty-four thousand, three hundred fifty-one".