164121 has 8 divisors (see below), whose sum is σ = 220704. Its totient is φ = 108480.

The previous prime is 164117. The next prime is 164147. The reversal of 164121 is 121461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164121 - 2² = 164117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164121.

It is not an unprimeable number, because it can be changed into a prime (164191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (27588).

2¹⁶⁴¹²¹ is an apocalyptic number.

It is an amenable number.

164121 is a deficient number, since it is larger than the sum of its proper divisors (56583).

164121 is a wasteful number, since it uses less digits than its factorization.

164121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 48, while the sum is 15.

The square root of 164121 is about 405.1185011821. The cubic root of 164121 is about 54.7504951895.

Adding to 164121 its reverse (121461), we get a palindrome (285582).

The spelling of 164121 in words is "one hundred sixty-four thousand, one hundred twenty-one".