164511323 has 4 divisors (see below), whose sum is σ = 166048920. Its totient is φ = 162973728.

The previous prime is 164511313. The next prime is 164511343. The reversal of 164511323 is 323115461.

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

It is a cyclic number.

It is not a de Polignac number, because 164511323 - 2⁴ = 164511307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164511292 and 164511301.

It is not an unprimeable number, because it can be changed into a prime (164511313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768638 + ... + 768851.

It is an arithmetic number, because the mean of its divisors is an integer number (41512230).

Almost surely, 2^164511323 is an apocalyptic number.

164511323 is a deficient number, since it is larger than the sum of its proper divisors (1537597).

164511323 is a wasteful number, since it uses less digits than its factorization.

164511323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537596.

The product of its digits is 2160, while the sum is 26.

The square root of 164511323 is about 12826.1967472825. The cubic root of 164511323 is about 547.9386452967.

Adding to 164511323 its reverse (323115461), we get a palindrome (487626784).

The spelling of 164511323 in words is "one hundred sixty-four million, five hundred eleven thousand, three hundred twenty-three".