164432326 has 4 divisors (see below), whose sum is σ = 246648492. Its totient is φ = 82216162.

The previous prime is 164432299. The next prime is 164432353. The reversal of 164432326 is 623234461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 623234461 = 8521 ⋅73141.

It is an interprime number because it is at equal distance from previous prime (164432299) and next prime (164432353).

It is a super-3 number, since 3×164432326³ (a number of 26 digits) contains 333 as substring.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41108080 + ... + 41108083.

It is an arithmetic number, because the mean of its divisors is an integer number (61662123).

Almost surely, 2^164432326 is an apocalyptic number.

164432326 is a deficient number, since it is larger than the sum of its proper divisors (82216166).

164432326 is an equidigital number, since it uses as much as digits as its factorization.

164432326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82216165.

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

The square root of 164432326 is about 12823.1168597966. The cubic root of 164432326 is about 547.8509260268.

Adding to 164432326 its reverse (623234461), we get a palindrome (787666787).

It can be divided in two parts, 16443 and 2326, that added together give a square (18769 = 137²).

The spelling of 164432326 in words is "one hundred sixty-four million, four hundred thirty-two thousand, three hundred twenty-six".