216351713 has 2 divisors, whose sum is σ = 216351714. Its totient is φ = 216351712.

The previous prime is 216351661. The next prime is 216351749. The reversal of 216351713 is 317153612.

216351713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214534609 + 1817104 = 14647^2 + 1348^2 .

It is a cyclic number.

It is not a de Polignac number, because 216351713 - 2¹⁰ = 216350689 is a prime.

It is a Chen prime.

It is equal to p_11932751 and since 216351713 and 11932751 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 (216351313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108175856 + 108175857.

It is an arithmetic number, because the mean of its divisors is an integer number (108175857).

Almost surely, 2^216351713 is an apocalyptic number.

It is an amenable number.

216351713 is a deficient number, since it is larger than the sum of its proper divisors (1).

216351713 is an equidigital number, since it uses as much as digits as its factorization.

216351713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 216351713 is about 14708.8991090428. The cubic root of 216351713 is about 600.3254835873.

The spelling of 216351713 in words is "two hundred sixteen million, three hundred fifty-one thousand, seven hundred thirteen".