1012771 has 2 divisors, whose sum is σ = 1012772. Its totient is φ = 1012770.

The previous prime is 1012769. The next prime is 1012789. The reversal of 1012771 is 1772101.

It is a weak prime.

It is an emirp because it is prime and its reverse (1772101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012771 - 2¹ = 1012769 is a prime.

Together with 1012769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1012721) 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, 506385 + 506386.

It is an arithmetic number, because the mean of its divisors is an integer number (506386).

2^1012771 is an apocalyptic number.

1012771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012771 is an equidigital number, since it uses as much as digits as its factorization.

1012771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 1012771 is about 1006.3652418481. The cubic root of 1012771 is about 100.4239005442.

Adding to 1012771 its reverse (1772101), we get a palindrome (2784872).

The spelling of 1012771 in words is "one million, twelve thousand, seven hundred seventy-one".