6774149 has 2 divisors, whose sum is σ = 6774150. Its totient is φ = 6774148.

The previous prime is 6774133. The next prime is 6774179. The reversal of 6774149 is 9414776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 66049 = 2590^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 6774149 - 2⁴ = 6774133 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6774179) 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 as a sum of consecutive naturals, namely, 3387074 + 3387075.

It is an arithmetic number, because the mean of its divisors is an integer number (3387075).

Almost surely, 2^6774149 is an apocalyptic number.

It is an amenable number.

6774149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6774149 is an equidigital number, since it uses as much as digits as its factorization.

6774149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 6774149 is about 2602.7195392512. The cubic root of 6774149 is about 189.2132657899.

The spelling of 6774149 in words is "six million, seven hundred seventy-four thousand, one hundred forty-nine".