6213161 has 4 divisors (see below), whose sum is σ = 6258000. Its totient is φ = 6168324.

The previous prime is 6213157. The next prime is 6213173. The reversal of 6213161 is 1613126.

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 not a de Polignac number, because 6213161 - 2² = 6213157 is a prime.

It is a super-2 number, since 2×6213161² = 77206739223842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6213101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22211 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (1564500).

Almost surely, 2^6213161 is an apocalyptic number.

It is an amenable number.

6213161 is a deficient number, since it is larger than the sum of its proper divisors (44839).

6213161 is a wasteful number, since it uses less digits than its factorization.

6213161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44838.

The product of its digits is 216, while the sum is 20.

The square root of 6213161 is about 2492.6213109897. The cubic root of 6213161 is about 183.8389521037.

Adding to 6213161 its reverse (1613126), we get a palindrome (7826287).

The spelling of 6213161 in words is "six million, two hundred thirteen thousand, one hundred sixty-one".