164129 has 4 divisors (see below), whose sum is σ = 187584. Its totient is φ = 140676.

The previous prime is 164117. The next prime is 164147. The reversal of 164129 is 921461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 921461 = 439 ⋅2099.

It is a cyclic number.

It is not a de Polignac number, because 164129 - 2⁴ = 164113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11717 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (46896).

2¹⁶⁴¹²⁹ is an apocalyptic number.

It is an amenable number.

164129 is a deficient number, since it is larger than the sum of its proper divisors (23455).

164129 is an equidigital number, since it uses as much as digits as its factorization.

164129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23454.

The product of its digits is 432, while the sum is 23.

The square root of 164129 is about 405.1283747160. The cubic root of 164129 is about 54.7513847707.

The spelling of 164129 in words is "one hundred sixty-four thousand, one hundred twenty-nine".