163169441 has 2 divisors, whose sum is σ = 163169442. Its totient is φ = 163169440.

The previous prime is 163169393. The next prime is 163169443. The reversal of 163169441 is 144961361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161823841 + 1345600 = 12721^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 163169441 - 2²⁶ = 96060577 is a prime.

Together with 163169443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163169443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81584720 + 81584721.

It is an arithmetic number, because the mean of its divisors is an integer number (81584721).

Almost surely, 2^163169441 is an apocalyptic number.

It is an amenable number.

163169441 is a deficient number, since it is larger than the sum of its proper divisors (1).

163169441 is an equidigital number, since it uses as much as digits as its factorization.

163169441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 163169441 is about 12773.7794328852. The cubic root of 163169441 is about 546.4447719226. Note that the first 3 decimals are identical.

The spelling of 163169441 in words is "one hundred sixty-three million, one hundred sixty-nine thousand, four hundred forty-one".