164379185 has 4 divisors (see below), whose sum is σ = 197255028. Its totient is φ = 131503344.

The previous prime is 164379167. The next prime is 164379191. The reversal of 164379185 is 581973461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23078416 + 141300769 = 4804^2 + 11887^2 .

It is a cyclic number.

It is not a de Polignac number, because 164379185 - 2⁶ = 164379121 is a prime.

It is a super-2 number, since 2×164379185² = 54041032922528450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 16437914 + ... + 16437923.

It is an arithmetic number, because the mean of its divisors is an integer number (49313757).

Almost surely, 2^164379185 is an apocalyptic number.

It is an amenable number.

164379185 is a deficient number, since it is larger than the sum of its proper divisors (32875843).

164379185 is an equidigital number, since it uses as much as digits as its factorization.

164379185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32875842.

The product of its digits is 181440, while the sum is 44.

The square root of 164379185 is about 12821.0446142270. The cubic root of 164379185 is about 547.7919017793.

The spelling of 164379185 in words is "one hundred sixty-four million, three hundred seventy-nine thousand, one hundred eighty-five".