164809853 has 16 divisors (see below), whose sum is σ = 180956160. Its totient is φ = 149190336.

The previous prime is 164809847. The next prime is 164809891. The reversal of 164809853 is 358908461.

It is a cyclic number.

It is not a de Polignac number, because 164809853 - 2¹² = 164805757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164806853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151076 + ... + 152162.

It is an arithmetic number, because the mean of its divisors is an integer number (11309760).

Almost surely, 2^164809853 is an apocalyptic number.

164809853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

164809853 is a deficient number, since it is larger than the sum of its proper divisors (16146307).

164809853 is a wasteful number, since it uses less digits than its factorization.

164809853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 164809853 is about 12837.8289831264. The cubic root of 164809853 is about 548.2698834472.

The spelling of 164809853 in words is "one hundred sixty-four million, eight hundred nine thousand, eight hundred fifty-three".