212008161 has 8 divisors (see below), whose sum is σ = 285271360. Its totient is φ = 140041872.

The previous prime is 212008151. The next prime is 212008177. The reversal of 212008161 is 161800212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212008161 - 2⁵ = 212008129 is a prime.

It is the 14561-st Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212008141) by changing a digit.

It is a nontrivial repunit in base 14560.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323845 + ... + 324498.

It is an arithmetic number, because the mean of its divisors is an integer number (35658920).

Almost surely, 2^212008161 is an apocalyptic number.

It is an amenable number.

212008161 is a deficient number, since it is larger than the sum of its proper divisors (73263199).

212008161 is a wasteful number, since it uses less digits than its factorization.

212008161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648455.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 212008161 is about 14560.5000257546. The cubic root of 212008161 is about 596.2808469113.

Adding to 212008161 its reverse (161800212), we get a palindrome (373808373).

The spelling of 212008161 in words is "two hundred twelve million, eight thousand, one hundred sixty-one".