164213 has 4 divisors (see below), whose sum is σ = 187680. Its totient is φ = 140748.

The previous prime is 164209. The next prime is 164231. The reversal of 164213 is 312461.

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: 312461 = 41 ⋅7621.

It is a cyclic number.

It is not a de Polignac number, because 164213 - 2² = 164209 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164191 and 164200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11723 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (46920).

2¹⁶⁴²¹³ is an apocalyptic number.

It is an amenable number.

164213 is a deficient number, since it is larger than the sum of its proper divisors (23467).

164213 is an equidigital number, since it uses as much as digits as its factorization.

164213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23466.

The product of its digits is 144, while the sum is 17.

The square root of 164213 is about 405.2320322975. The cubic root of 164213 is about 54.7607236280.

Adding to 164213 its reverse (312461), we get a palindrome (476674).

The spelling of 164213 in words is "one hundred sixty-four thousand, two hundred thirteen".