164043305 has 16 divisors (see below), whose sum is σ = 202098240. Its totient is φ = 127780032.

The previous prime is 164043293. The next prime is 164043307. The reversal of 164043305 is 503340461.

It is a cyclic number.

It is not a de Polignac number, because 164043305 - 2¹⁶ = 163977769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164043307) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28967 + ... + 34163.

It is an arithmetic number, because the mean of its divisors is an integer number (12631140).

Almost surely, 2^164043305 is an apocalyptic number.

It is an amenable number.

164043305 is a deficient number, since it is larger than the sum of its proper divisors (38054935).

164043305 is a wasteful number, since it uses less digits than its factorization.

164043305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 164043305 is about 12807.9391394557. The cubic root of 164043305 is about 547.4185418451.

Adding to 164043305 its reverse (503340461), we get a palindrome (667383766).

The spelling of 164043305 in words is "one hundred sixty-four million, forty-three thousand, three hundred five".