164321303 has 4 divisors (see below), whose sum is σ = 173987280. Its totient is φ = 154655328.

The previous prime is 164321299. The next prime is 164321351. The reversal of 164321303 is 303123461.

164321303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303123461 = 239 ⋅1268299.

It is a cyclic number.

It is not a de Polignac number, because 164321303 - 2² = 164321299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164321803) 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, 4832963 + ... + 4832996.

It is an arithmetic number, because the mean of its divisors is an integer number (43496820).

Almost surely, 2^164321303 is an apocalyptic number.

164321303 is a deficient number, since it is larger than the sum of its proper divisors (9665977).

164321303 is an equidigital number, since it uses as much as digits as its factorization.

164321303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665976.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 164321303 is about 12818.7871111116. The cubic root of 164321303 is about 547.7275971793.

Adding to 164321303 its reverse (303123461), we get a palindrome (467444764).

The spelling of 164321303 in words is "one hundred sixty-four million, three hundred twenty-one thousand, three hundred three".