164840303 has 4 divisors (see below), whose sum is σ = 164961048. Its totient is φ = 164719560.

The previous prime is 164840267. The next prime is 164840309. The reversal of 164840303 is 303048461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303048461 = 19 ⋅15949919.

It is a cyclic number.

It is not a de Polignac number, because 164840303 - 2¹⁶ = 164774767 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 (164840309) 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, 58301 + ... + 61062.

It is an arithmetic number, because the mean of its divisors is an integer number (41240262).

Almost surely, 2^164840303 is an apocalyptic number.

164840303 is a deficient number, since it is larger than the sum of its proper divisors (120745).

164840303 is a wasteful number, since it uses less digits than its factorization.

164840303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120744.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 164840303 is about 12839.0148765394. The cubic root of 164840303 is about 548.3036471848.

Adding to 164840303 its reverse (303048461), we get a palindrome (467888764).

The spelling of 164840303 in words is "one hundred sixty-four million, eight hundred forty thousand, three hundred three".