164043005 has 32 divisors (see below), whose sum is σ = 229367040. Its totient is φ = 110315520.

The previous prime is 164042981. The next prime is 164043007. The reversal of 164043005 is 500340461.

It is a happy number.

It is not a de Polignac number, because 164043005 - 2¹⁰ = 164041981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164043007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 716231 + ... + 716459.

It is an arithmetic number, because the mean of its divisors is an integer number (7167720).

Almost surely, 2^164043005 is an apocalyptic number.

It is an amenable number.

164043005 is a deficient number, since it is larger than the sum of its proper divisors (65324035).

164043005 is a wasteful number, since it uses less digits than its factorization.

164043005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 164043005 is about 12807.9274279643. The cubic root of 164043005 is about 547.4182081412.

Adding to 164043005 its reverse (500340461), we get a palindrome (664383466).

The spelling of 164043005 in words is "one hundred sixty-four million, forty-three thousand, five".