164849 has 4 divisors (see below), whose sum is σ = 174564. Its totient is φ = 155136.

The previous prime is 164839. The next prime is 164881. The reversal of 164849 is 948461.

164849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948461 = 19 ⋅49919.

It can be written as a sum of positive squares in 2 ways, for example, as 71824 + 93025 = 268^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 164849 - 2¹² = 160753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164809) 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, 4832 + ... + 4865.

It is an arithmetic number, because the mean of its divisors is an integer number (43641).

2¹⁶⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

164849 is a deficient number, since it is larger than the sum of its proper divisors (9715).

164849 is an equidigital number, since it uses as much as digits as its factorization.

164849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714.

The product of its digits is 6912, while the sum is 32.

The square root of 164849 is about 406.0160095366. The cubic root of 164849 is about 54.8313289877.

The spelling of 164849 in words is "one hundred sixty-four thousand, eight hundred forty-nine".