216514339 has 2 divisors, whose sum is σ = 216514340. Its totient is φ = 216514338.

The previous prime is 216514327. The next prime is 216514349. The reversal of 216514339 is 933415612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216514339 - 2⁷ = 216514211 is a prime.

It is not a weakly prime, because it can be changed into another prime (216514349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108257169 + 108257170.

It is an arithmetic number, because the mean of its divisors is an integer number (108257170).

Almost surely, 2^216514339 is an apocalyptic number.

216514339 is a deficient number, since it is larger than the sum of its proper divisors (1).

216514339 is an equidigital number, since it uses as much as digits as its factorization.

216514339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 216514339 is about 14714.4262205497. The cubic root of 216514339 is about 600.4758623068.

The spelling of 216514339 in words is "two hundred sixteen million, five hundred fourteen thousand, three hundred thirty-nine".