164026 has 4 divisors (see below), whose sum is σ = 246042. Its totient is φ = 82012.

The previous prime is 164023. The next prime is 164039. The reversal of 164026 is 620461.

It is a Cunningham number, because it is equal to 405²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 164025 + 1 = 405^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163994 and 164012.

It is not an unprimeable number, because it can be changed into a prime (164023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41005 + ... + 41008.

2¹⁶⁴⁰²⁶ is an apocalyptic number.

164026 is a deficient number, since it is larger than the sum of its proper divisors (82016).

164026 is an equidigital number, since it uses as much as digits as its factorization.

164026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82015.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 164026 is about 405.0012345660. The cubic root of 164026 is about 54.7399292028.

Adding to 164026 its reverse (620461), we get a palindrome (784487).

The spelling of 164026 in words is "one hundred sixty-four thousand, twenty-six".