164547 has 12 divisors (see below), whose sum is σ = 243360. Its totient is φ = 107088.

The previous prime is 164531. The next prime is 164569. The reversal of 164547 is 745461.

It is not a de Polignac number, because 164547 - 2⁴ = 164531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164547.

It is not an unprimeable number, because it can be changed into a prime (164587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 617.

It is an arithmetic number, because the mean of its divisors is an integer number (20280).

2¹⁶⁴⁵⁴⁷ is an apocalyptic number.

164547 is a deficient number, since it is larger than the sum of its proper divisors (78813).

164547 is a wasteful number, since it uses less digits than its factorization.

164547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 439 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 164547 is about 405.6439325320. The cubic root of 164547 is about 54.7978252285.

It can be divided in two parts, 16454 and 7, that added together give a palindrome (16461).

The spelling of 164547 in words is "one hundred sixty-four thousand, five hundred forty-seven".