164342326 has 4 divisors (see below), whose sum is σ = 246513492. Its totient is φ = 82171162.

The previous prime is 164342287. The next prime is 164342329. The reversal of 164342326 is 623243461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 623243461 = 263 ⋅2369747.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (164342329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41085580 + ... + 41085583.

It is an arithmetic number, because the mean of its divisors is an integer number (61628373).

Almost surely, 2^164342326 is an apocalyptic number.

164342326 is a deficient number, since it is larger than the sum of its proper divisors (82171166).

164342326 is an equidigital number, since it uses as much as digits as its factorization.

164342326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82171165.

The product of its digits is 20736, while the sum is 31.

The square root of 164342326 is about 12819.6070922630. The cubic root of 164342326 is about 547.7509546423.

Adding to 164342326 its reverse (623243461), we get a palindrome (787585787).

The spelling of 164342326 in words is "one hundred sixty-four million, three hundred forty-two thousand, three hundred twenty-six".