164133023 has 4 divisors (see below), whose sum is σ = 164178048. Its totient is φ = 164088000.

The previous prime is 164133019. The next prime is 164133029. The reversal of 164133023 is 320331461.

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 164133023 - 2² = 164133019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164133023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164133029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16511 + ... + 24512.

It is an arithmetic number, because the mean of its divisors is an integer number (41044512).

Almost surely, 2^164133023 is an apocalyptic number.

164133023 is a deficient number, since it is larger than the sum of its proper divisors (45025).

164133023 is an equidigital number, since it uses as much as digits as its factorization.

164133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45024.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 164133023 is about 12811.4410977064. The cubic root of 164133023 is about 547.5183210788.

Adding to 164133023 its reverse (320331461), we get a palindrome (484464484).

The spelling of 164133023 in words is "one hundred sixty-four million, one hundred thirty-three thousand, twenty-three".