164763943 has 2 divisors, whose sum is σ = 164763944. Its totient is φ = 164763942.

The previous prime is 164763941. The next prime is 164764001. The reversal of 164763943 is 349367461.

It is a weak prime.

It is an emirp because it is prime and its reverse (349367461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164763943 - 2¹ = 164763941 is a prime.

Together with 164763941, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 164763943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164763941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82381971 + 82381972.

It is an arithmetic number, because the mean of its divisors is an integer number (82381972).

Almost surely, 2^164763943 is an apocalyptic number.

164763943 is a deficient number, since it is larger than the sum of its proper divisors (1).

164763943 is an equidigital number, since it uses as much as digits as its factorization.

164763943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 164763943 is about 12836.0407836685. The cubic root of 164763943 is about 548.2189694039.

The spelling of 164763943 in words is "one hundred sixty-four million, seven hundred sixty-three thousand, nine hundred forty-three".