1271069 has 2 divisors, whose sum is σ = 1271070. Its totient is φ = 1271068.

The previous prime is 1271059. The next prime is 1271087. The reversal of 1271069 is 9601721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 582169 = 830^2 + 763^2 .

It is an emirp because it is prime and its reverse (9601721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1271069 - 2²⁰ = 222493 is a prime.

It is a super-2 number, since 2×1271069² = 3231232805522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1271029) 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, 635534 + 635535.

It is an arithmetic number, because the mean of its divisors is an integer number (635535).

2^1271069 is an apocalyptic number.

It is an amenable number.

1271069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271069 is an equidigital number, since it uses as much as digits as its factorization.

1271069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1271069 is about 1127.4169592480. The cubic root of 1271069 is about 108.3235893932.

The spelling of 1271069 in words is "one million, two hundred seventy-one thousand, sixty-nine".