164224003 has 4 divisors (see below), whose sum is σ = 164271240. Its totient is φ = 164176768.

The previous prime is 164224001. The next prime is 164224033. The reversal of 164224003 is 300422461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300422461 = 3323 ⋅90407.

It is a cyclic number.

It is not a de Polignac number, because 164224003 - 2¹ = 164224001 is a prime.

It is a super-2 number, since 2×164224003² = 53939046322688018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164224001) 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 3 ways as a sum of consecutive naturals, for example, 17950 + ... + 25507.

It is an arithmetic number, because the mean of its divisors is an integer number (41067810).

Almost surely, 2^164224003 is an apocalyptic number.

164224003 is a deficient number, since it is larger than the sum of its proper divisors (47237).

164224003 is an equidigital number, since it uses as much as digits as its factorization.

164224003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47236.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 164224003 is about 12814.9913382725. The cubic root of 164224003 is about 547.6194667123.

Adding to 164224003 its reverse (300422461), we get a palindrome (464646464).

The spelling of 164224003 in words is "one hundred sixty-four million, two hundred twenty-four thousand, three".