164423013 has 16 divisors (see below), whose sum is σ = 228571200. Its totient is φ = 105041664.

The previous prime is 164423009. The next prime is 164423027. The reversal of 164423013 is 310324461.

It is not a de Polignac number, because 164423013 - 2² = 164423009 is a prime.

It is a super-3 number, since 3×164423013³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164423003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5188 + ... + 18861.

It is an arithmetic number, because the mean of its divisors is an integer number (14285700).

Almost surely, 2^164423013 is an apocalyptic number.

It is an amenable number.

164423013 is a deficient number, since it is larger than the sum of its proper divisors (64148187).

164423013 is a wasteful number, since it uses less digits than its factorization.

164423013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24148.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 164423013 is about 12822.7537214126. The cubic root of 164423013 is about 547.8405829024.

Adding to 164423013 its reverse (310324461), we get a palindrome (474747474).

The spelling of 164423013 in words is "one hundred sixty-four million, four hundred twenty-three thousand, thirteen".