163443043 has 16 divisors (see below), whose sum is σ = 176346720. Its totient is φ = 151167744.

The previous prime is 163443041. The next prime is 163443061. The reversal of 163443043 is 340344361.

It is a cyclic number.

It is not a de Polignac number, because 163443043 - 2¹ = 163443041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163443041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64855 + ... + 67327.

It is an arithmetic number, because the mean of its divisors is an integer number (11021670).

Almost surely, 2^163443043 is an apocalyptic number.

163443043 is a deficient number, since it is larger than the sum of its proper divisors (12903677).

163443043 is a wasteful number, since it uses less digits than its factorization.

163443043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 163443043 is about 12784.4844635988. The cubic root of 163443043 is about 546.7500269881.

The spelling of 163443043 in words is "one hundred sixty-three million, four hundred forty-three thousand, forty-three".