164729184 has 48 divisors (see below), whose sum is σ = 457854768. Its totient is φ = 51679232.

The previous prime is 164729171. The next prime is 164729189. The reversal of 164729184 is 481927461.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×164729184² = 54271408122611712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164729189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48837 + ... + 52100.

It is an arithmetic number, because the mean of its divisors is an integer number (9538641).

Almost surely, 2^164729184 is an apocalyptic number.

It is an amenable number.

164729184 is an abundant number, since it is smaller than the sum of its proper divisors (293125584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164729184 is a wasteful number, since it uses less digits than its factorization.

164729184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100967 (or 100959 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 164729184 is about 12834.6867511443. The cubic root of 164729184 is about 548.1804154927.

The spelling of 164729184 in words is "one hundred sixty-four million, seven hundred twenty-nine thousand, one hundred eighty-four".