164216287 has 2 divisors, whose sum is σ = 164216288. Its totient is φ = 164216286.

The previous prime is 164216279. The next prime is 164216309. The reversal of 164216287 is 782612461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164216287 - 2³ = 164216279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164216237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82108143 + 82108144.

It is an arithmetic number, because the mean of its divisors is an integer number (82108144).

Almost surely, 2^164216287 is an apocalyptic number.

164216287 is a deficient number, since it is larger than the sum of its proper divisors (1).

164216287 is an equidigital number, since it uses as much as digits as its factorization.

164216287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 164216287 is about 12814.6902810798. The cubic root of 164216287 is about 547.6108900164.

The spelling of 164216287 in words is "one hundred sixty-four million, two hundred sixteen thousand, two hundred eighty-seven".