163434161 has 4 divisors (see below), whose sum is σ = 178291824. Its totient is φ = 148576500.

The previous prime is 163434151. The next prime is 163434163. The reversal of 163434161 is 161434361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163434161 is a prime.

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

It is a pancake number, because a pancake can be divided into 163434161 parts by 18079 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163434163) 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 3 ways as a sum of consecutive naturals, for example, 7428815 + ... + 7428836.

It is an arithmetic number, because the mean of its divisors is an integer number (44572956).

Almost surely, 2^163434161 is an apocalyptic number.

163434161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163434161 is a deficient number, since it is larger than the sum of its proper divisors (14857663).

163434161 is a wasteful number, since it uses less digits than its factorization.

163434161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14857662.

The product of its digits is 5184, while the sum is 29.

The square root of 163434161 is about 12784.1370846843. The cubic root of 163434161 is about 546.7401227801.

The spelling of 163434161 in words is "one hundred sixty-three million, four hundred thirty-four thousand, one hundred sixty-one".