6223181 has 2 divisors, whose sum is σ = 6223182. Its totient is φ = 6223180.

The previous prime is 6223171. The next prime is 6223187. The reversal of 6223181 is 1813226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 2669956 = 1885^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 6223181 - 2⁶ = 6223117 is a prime.

It is a super-2 number, since 2×6223181² = 77455963517522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6223187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111590 + 3111591.

It is an arithmetic number, because the mean of its divisors is an integer number (3111591).

Almost surely, 2^6223181 is an apocalyptic number.

It is an amenable number.

6223181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6223181 is an equidigital number, since it uses as much as digits as its factorization.

6223181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 6223181 is about 2494.6304335512. The cubic root of 6223181 is about 183.9377250659.

The spelling of 6223181 in words is "six million, two hundred twenty-three thousand, one hundred eighty-one".