1281041 has 2 divisors, whose sum is σ = 1281042. Its totient is φ = 1281040.

The previous prime is 1281029. The next prime is 1281043. The reversal of 1281041 is 1401821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1274641 + 6400 = 1129^2 + 80^2 .

It is an emirp because it is prime and its reverse (1401821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1281041 - 2¹⁴ = 1264657 is a prime.

Together with 1281043, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1281043) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640520 + 640521.

It is an arithmetic number, because the mean of its divisors is an integer number (640521).

2^1281041 is an apocalyptic number.

It is an amenable number.

1281041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1281041 is an equidigital number, since it uses as much as digits as its factorization.

1281041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1281041 is about 1131.8308177462. The cubic root of 1281041 is about 108.6061311539.

Adding to 1281041 its reverse (1401821), we get a palindrome (2682862).

The spelling of 1281041 in words is "one million, two hundred eighty-one thousand, forty-one".