164659 has 4 divisors (see below), whose sum is σ = 179640. Its totient is φ = 149680.

The previous prime is 164653. The next prime is 164663. The reversal of 164659 is 956461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956461 = 11 ⋅86951.

It is a cyclic number.

It is not a de Polignac number, because 164659 - 2⁵ = 164627 is a prime.

It is a super-3 number, since 3×164659³ = 13392994033329537, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164659.

It is not an unprimeable number, because it can be changed into a prime (164653) 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, 7474 + ... + 7495.

It is an arithmetic number, because the mean of its divisors is an integer number (44910).

2¹⁶⁴⁶⁵⁹ is an apocalyptic number.

164659 is a deficient number, since it is larger than the sum of its proper divisors (14981).

164659 is a wasteful number, since it uses less digits than its factorization.

164659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14980.

The product of its digits is 6480, while the sum is 31.

The square root of 164659 is about 405.7819611565. The cubic root of 164659 is about 54.8102552424.

The spelling of 164659 in words is "one hundred sixty-four thousand, six hundred fifty-nine".