216364319 has 2 divisors, whose sum is σ = 216364320. Its totient is φ = 216364318.

The previous prime is 216364307. The next prime is 216364327. The reversal of 216364319 is 913463612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216364319 - 2⁸ = 216364063 is a prime.

It is a super-2 number, since 2×216364319² = 93627037072667522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216364349) 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, 108182159 + 108182160.

It is an arithmetic number, because the mean of its divisors is an integer number (108182160).

Almost surely, 2^216364319 is an apocalyptic number.

216364319 is a deficient number, since it is larger than the sum of its proper divisors (1).

216364319 is an equidigital number, since it uses as much as digits as its factorization.

216364319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 216364319 is about 14709.3276188954. The cubic root of 216364319 is about 600.3371429297.

The spelling of 216364319 in words is "two hundred sixteen million, three hundred sixty-four thousand, three hundred nineteen".