6216161 has 8 divisors (see below), whose sum is σ = 7170240. Its totient is φ = 5278608.

The previous prime is 6216149. The next prime is 6216191. The reversal of 6216161 is 1616126.

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

It is a cyclic number.

It is not a de Polignac number, because 6216161 - 2¹⁴ = 6199777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6216191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3311 + ... + 4836.

It is an arithmetic number, because the mean of its divisors is an integer number (896280).

Almost surely, 2^6216161 is an apocalyptic number.

It is an amenable number.

6216161 is a deficient number, since it is larger than the sum of its proper divisors (954079).

6216161 is a wasteful number, since it uses less digits than its factorization.

6216161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263.

The product of its digits is 432, while the sum is 23.

The square root of 6216161 is about 2493.2230144935. The cubic root of 6216161 is about 183.8685359776.

The spelling of 6216161 in words is "six million, two hundred sixteen thousand, one hundred sixty-one".