8128741 has 2 divisors, whose sum is σ = 8128742. Its totient is φ = 8128740.

The previous prime is 8128733. The next prime is 8128753. The reversal of 8128741 is 1478218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8122500 + 6241 = 2850^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 8128741 - 2³ = 8128733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8128781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4064370 + 4064371.

It is an arithmetic number, because the mean of its divisors is an integer number (4064371).

Almost surely, 2^8128741 is an apocalyptic number.

It is an amenable number.

8128741 is a deficient number, since it is larger than the sum of its proper divisors (1).

8128741 is an equidigital number, since it uses as much as digits as its factorization.

8128741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 31.

The square root of 8128741 is about 2851.0947020399. The cubic root of 8128741 is about 201.0671376261.

The spelling of 8128741 in words is "eight million, one hundred twenty-eight thousand, seven hundred forty-one".