164044723 has 2 divisors, whose sum is σ = 164044724. Its totient is φ = 164044722.

The previous prime is 164044669. The next prime is 164044817. The reversal of 164044723 is 327440461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164044723 - 2²⁵ = 130490291 is a prime.

It is a super-2 number, since 2×164044723² = 53821342288293458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164041723) 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 as a sum of consecutive naturals, namely, 82022361 + 82022362.

It is an arithmetic number, because the mean of its divisors is an integer number (82022362).

Almost surely, 2^164044723 is an apocalyptic number.

164044723 is a deficient number, since it is larger than the sum of its proper divisors (1).

164044723 is an equidigital number, since it uses as much as digits as its factorization.

164044723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 164044723 is about 12807.9944956265. The cubic root of 164044723 is about 547.4201191466.

The spelling of 164044723 in words is "one hundred sixty-four million, forty-four thousand, seven hundred twenty-three".