216000539 has 2 divisors, whose sum is σ = 216000540. Its totient is φ = 216000538.

The previous prime is 216000509. The next prime is 216000541. The reversal of 216000539 is 935000612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216000539 is a prime.

It is a super-3 number, since 3×216000539³ (a number of 26 digits) contains 333 as substring.

Together with 216000541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (216000509) 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, 108000269 + 108000270.

It is an arithmetic number, because the mean of its divisors is an integer number (108000270).

Almost surely, 2^216000539 is an apocalyptic number.

216000539 is a deficient number, since it is larger than the sum of its proper divisors (1).

216000539 is an equidigital number, since it uses as much as digits as its factorization.

216000539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 216000539 is about 14696.9567938400. The cubic root of 216000539 is about 600.0004990737. Note that the first 3 decimals are identical.

The spelling of 216000539 in words is "two hundred sixteen million, five hundred thirty-nine", and thus it is an aban number.