5128771 has 2 divisors, whose sum is σ = 5128772. Its totient is φ = 5128770.

The previous prime is 5128751. The next prime is 5128789. The reversal of 5128771 is 1778215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5128771 - 2²¹ = 3031619 is a prime.

5128771 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5128751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564385 + 2564386.

It is an arithmetic number, because the mean of its divisors is an integer number (2564386).

Almost surely, 2^5128771 is an apocalyptic number.

5128771 is a deficient number, since it is larger than the sum of its proper divisors (1).

5128771 is an equidigital number, since it uses as much as digits as its factorization.

5128771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 31.

The square root of 5128771 is about 2264.6790059521. The cubic root of 5128771 is about 172.4531385695.

The spelling of 5128771 in words is "five million, one hundred twenty-eight thousand, seven hundred seventy-one".