164347871 has 2 divisors, whose sum is σ = 164347872. Its totient is φ = 164347870.

The previous prime is 164347867. The next prime is 164347877. The reversal of 164347871 is 178743461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164347871 - 2² = 164347867 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 (164347877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82173935 + 82173936.

It is an arithmetic number, because the mean of its divisors is an integer number (82173936).

Almost surely, 2^164347871 is an apocalyptic number.

164347871 is a deficient number, since it is larger than the sum of its proper divisors (1).

164347871 is an equidigital number, since it uses as much as digits as its factorization.

164347871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 164347871 is about 12819.8233607176. The cubic root of 164347871 is about 547.7571150453.

The spelling of 164347871 in words is "one hundred sixty-four million, three hundred forty-seven thousand, eight hundred seventy-one".