163314433 has 2 divisors, whose sum is σ = 163314434. Its totient is φ = 163314432.

The previous prime is 163314397. The next prime is 163314449. The reversal of 163314433 is 334413361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145733184 + 17581249 = 12072^2 + 4193^2 .

It is an emirp because it is prime and its reverse (334413361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163314433 is a prime.

It is a super-2 number, since 2×163314433² = 53343208052222978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163314133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81657216 + 81657217.

It is an arithmetic number, because the mean of its divisors is an integer number (81657217).

Almost surely, 2^163314433 is an apocalyptic number.

It is an amenable number.

163314433 is a deficient number, since it is larger than the sum of its proper divisors (1).

163314433 is an equidigital number, since it uses as much as digits as its factorization.

163314433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 163314433 is about 12779.4535485677. The cubic root of 163314433 is about 546.6065805382.

Adding to 163314433 its reverse (334413361), we get a palindrome (497727794).

The spelling of 163314433 in words is "one hundred sixty-three million, three hundred fourteen thousand, four hundred thirty-three".