216305314 has 16 divisors (see below), whose sum is σ = 344547000. Its totient is φ = 101493504.

The previous prime is 216305281. The next prime is 216305347. The reversal of 216305314 is 413503612.

It is an interprime number because it is at equal distance from previous prime (216305281) and next prime (216305347).

It can be written as a sum of positive squares in 4 ways, for example, as 202578289 + 13727025 = 14233^2 + 3705^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2752 + ... + 20980.

Almost surely, 2^216305314 is an apocalyptic number.

216305314 is a deficient number, since it is larger than the sum of its proper divisors (128241686).

216305314 is a wasteful number, since it uses less digits than its factorization.

216305314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 216305314 is about 14707.3217820241. The cubic root of 216305314 is about 600.2825650556.

Adding to 216305314 its reverse (413503612), we get a palindrome (629808926).

The spelling of 216305314 in words is "two hundred sixteen million, three hundred five thousand, three hundred fourteen".