6426181 has 2 divisors, whose sum is σ = 6426182. Its totient is φ = 6426180.

The previous prime is 6426163. The next prime is 6426227. The reversal of 6426181 is 1816246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6400900 + 25281 = 2530^2 + 159^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426181 - 2⁵ = 6426149 is a prime.

It is a super-2 number, since 2×6426181² = 82591604489522, 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 (6426781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213090 + 3213091.

It is an arithmetic number, because the mean of its divisors is an integer number (3213091).

Almost surely, 2^6426181 is an apocalyptic number.

It is an amenable number.

6426181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426181 is an equidigital number, since it uses as much as digits as its factorization.

6426181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 6426181 is about 2534.9913214842. The cubic root of 6426181 is about 185.9163785673.

The spelling of 6426181 in words is "six million, four hundred twenty-six thousand, one hundred eighty-one".