164012003 has 4 divisors (see below), whose sum is σ = 164650440. Its totient is φ = 163373568.

The previous prime is 164011997. The next prime is 164012021. The reversal of 164012003 is 300210461.

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 164012003 - 2⁸ = 164011747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164012033) 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 in 3 ways as a sum of consecutive naturals, for example, 318833 + ... + 319346.

It is an arithmetic number, because the mean of its divisors is an integer number (41162610).

Almost surely, 2^164012003 is an apocalyptic number.

164012003 is a deficient number, since it is larger than the sum of its proper divisors (638437).

164012003 is an equidigital number, since it uses as much as digits as its factorization.

164012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638436.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 164012003 is about 12806.7171047072. The cubic root of 164012003 is about 547.3837209885.

Adding to 164012003 its reverse (300210461), we get a palindrome (464222464).

The spelling of 164012003 in words is "one hundred sixty-four million, twelve thousand, three".