163313333 has 2 divisors, whose sum is σ = 163313334. Its totient is φ = 163313332.

The previous prime is 163313327. The next prime is 163313347. The reversal of 163313333 is 333313361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 25180324 = 11753^2 + 5018^2 .

It is a cyclic number.

It is not a de Polignac number, because 163313333 - 2¹⁶ = 163247797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163313323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81656666 + 81656667.

It is an arithmetic number, because the mean of its divisors is an integer number (81656667).

Almost surely, 2^163313333 is an apocalyptic number.

It is an amenable number.

163313333 is a deficient number, since it is larger than the sum of its proper divisors (1).

163313333 is an equidigital number, since it uses as much as digits as its factorization.

163313333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 26.

The square root of 163313333 is about 12779.4105106613. The cubic root of 163313333 is about 546.6053533174.

Adding to 163313333 its reverse (333313361), we get a palindrome (496626694).

The spelling of 163313333 in words is "one hundred sixty-three million, three hundred thirteen thousand, three hundred thirty-three".