216313267 has 2 divisors, whose sum is σ = 216313268. Its totient is φ = 216313266.

The previous prime is 216313247. The next prime is 216313277. The reversal of 216313267 is 762313612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216313267 is a prime.

It is a Chen prime.

It is equal to p_11930764 and since 216313267 and 11930764 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (216313217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108156633 + 108156634.

It is an arithmetic number, because the mean of its divisors is an integer number (108156634).

Almost surely, 2^216313267 is an apocalyptic number.

216313267 is a deficient number, since it is larger than the sum of its proper divisors (1).

216313267 is an equidigital number, since it uses as much as digits as its factorization.

216313267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 216313267 is about 14707.5921550742. The cubic root of 216313267 is about 600.2899219233.

Adding to 216313267 its reverse (762313612), we get a palindrome (978626879).

The spelling of 216313267 in words is "two hundred sixteen million, three hundred thirteen thousand, two hundred sixty-seven".