164871836 has 12 divisors (see below), whose sum is σ = 288666840. Its totient is φ = 82395600.

The previous prime is 164871821. The next prime is 164871881. The reversal of 164871836 is 638178461.

164871836 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

164871836 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 311 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (24055570).

Almost surely, 2^164871836 is an apocalyptic number.

It is an amenable number.

164871836 is a deficient number, since it is larger than the sum of its proper divisors (123795004).

164871836 is a wasteful number, since it uses less digits than its factorization.

164871836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20164 (or 20162 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 164871836 is about 12840.2428325947. The cubic root of 164871836 is about 548.3386073983.

The spelling of 164871836 in words is "one hundred sixty-four million, eight hundred seventy-one thousand, eight hundred thirty-six".