164443023 has 24 divisors (see below), whose sum is σ = 252439200. Its totient is φ = 103152192.

The previous prime is 164442979. The next prime is 164443067. The reversal of 164443023 is 320344461.

It is an interprime number because it is at equal distance from previous prime (164442979) and next prime (164443067).

It is not a de Polignac number, because 164443023 - 2¹⁰ = 164441999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164443073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42358 + ... + 46076.

It is an arithmetic number, because the mean of its divisors is an integer number (10518300).

Almost surely, 2^164443023 is an apocalyptic number.

164443023 is a deficient number, since it is larger than the sum of its proper divisors (87996177).

164443023 is an equidigital number, since it uses as much as digits as its factorization.

164443023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 164443023 is about 12823.5339512944. The cubic root of 164443023 is about 547.8628057555.

Adding to 164443023 its reverse (320344461), we get a palindrome (484787484).

The spelling of 164443023 in words is "one hundred sixty-four million, four hundred forty-three thousand, twenty-three".