164281 has 4 divisors (see below), whose sum is σ = 176932. Its totient is φ = 151632.

The previous prime is 164279. The next prime is 164291. The reversal of 164281 is 182461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 182461 = 17 ⋅10733.

It can be written as a sum of positive squares in 2 ways, for example, as 19881 + 144400 = 141^2 + 380^2 .

It is not a de Polignac number, because 164281 - 2¹ = 164279 is a prime.

It is a super-2 number, since 2×164281² = 53976493922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164201) 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, 6306 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (44233).

2¹⁶⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

164281 is a deficient number, since it is larger than the sum of its proper divisors (12651).

164281 is a wasteful number, since it uses less digits than its factorization.

164281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12650.

The product of its digits is 384, while the sum is 22.

The square root of 164281 is about 405.3159261613. The cubic root of 164281 is about 54.7682813231.

The spelling of 164281 in words is "one hundred sixty-four thousand, two hundred eighty-one".