163443041 has 2 divisors, whose sum is σ = 163443042. Its totient is φ = 163443040.

The previous prime is 163443029. The next prime is 163443061. The reversal of 163443041 is 140344361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162435025 + 1008016 = 12745^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 163443041 - 2⁶ = 163442977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163443041.

It is not a weakly prime, because it can be changed into another prime (163443001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81721520 + 81721521.

It is an arithmetic number, because the mean of its divisors is an integer number (81721521).

Almost surely, 2^163443041 is an apocalyptic number.

It is an amenable number.

163443041 is a deficient number, since it is larger than the sum of its proper divisors (1).

163443041 is an equidigital number, since it uses as much as digits as its factorization.

163443041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 163443041 is about 12784.4843853790. The cubic root of 163443041 is about 546.7500247580.

The spelling of 163443041 in words is "one hundred sixty-three million, four hundred forty-three thousand, forty-one".