163434143 has 16 divisors (see below), whose sum is σ = 177438720. Its totient is φ = 150006816.

The previous prime is 163434133. The next prime is 163434151. The reversal of 163434143 is 341434361.

It is a cyclic number.

It is not a de Polignac number, because 163434143 - 2⁴ = 163434127 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163434133) 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 in 15 ways as a sum of consecutive naturals, for example, 268946 + ... + 269552.

It is an arithmetic number, because the mean of its divisors is an integer number (11089920).

Almost surely, 2^163434143 is an apocalyptic number.

163434143 is a deficient number, since it is larger than the sum of its proper divisors (14004577).

163434143 is a wasteful number, since it uses less digits than its factorization.

163434143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 10368, while the sum is 29.

The square root of 163434143 is about 12784.1363806868. The cubic root of 163434143 is about 546.7401027081.

The spelling of 163434143 in words is "one hundred sixty-three million, four hundred thirty-four thousand, one hundred forty-three".