164144003 has 4 divisors (see below), whose sum is σ = 164216520. Its totient is φ = 164071488.

The previous prime is 164143981. The next prime is 164144009. The reversal of 164144003 is 300441461.

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 164144003 - 2⁸ = 164143747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164144003.

It is not an unprimeable number, because it can be changed into a prime (164144009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32750 + ... + 37427.

It is an arithmetic number, because the mean of its divisors is an integer number (41054130).

Almost surely, 2^164144003 is an apocalyptic number.

164144003 is a deficient number, since it is larger than the sum of its proper divisors (72517).

164144003 is an equidigital number, since it uses as much as digits as its factorization.

164144003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72516.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 164144003 is about 12811.8696137605. The cubic root of 164144003 is about 547.5305299100.

Adding to 164144003 its reverse (300441461), we get a palindrome (464585464).

The spelling of 164144003 in words is "one hundred sixty-four million, one hundred forty-four thousand, three".