164023433 has 6 divisors (see below), whose sum is σ = 190802826. Its totient is φ = 140591472.

The previous prime is 164023423. The next prime is 164023441. The reversal of 164023433 is 334320461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 158055184 + 5968249 = 12572^2 + 2443^2 .

It is not a de Polignac number, because 164023433 - 2⁴ = 164023417 is a prime.

It is a super-3 number, since 3×164023433³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164023423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1673660 + ... + 1673757.

It is an arithmetic number, because the mean of its divisors is an integer number (31800471).

Almost surely, 2^164023433 is an apocalyptic number.

It is an amenable number.

164023433 is a deficient number, since it is larger than the sum of its proper divisors (26779393).

164023433 is an equidigital number, since it uses as much as digits as its factorization.

164023433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347431 (or 3347424 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 164023433 is about 12807.1633471273. The cubic root of 164023433 is about 547.3964364208.

Adding to 164023433 its reverse (334320461), we get a palindrome (498343894).

The spelling of 164023433 in words is "one hundred sixty-four million, twenty-three thousand, four hundred thirty-three".