1267000841 has 2 divisors, whose sum is σ = 1267000842. Its totient is φ = 1267000840.

The previous prime is 1267000831. The next prime is 1267000873. The reversal of 1267000841 is 1480007621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981255625 + 285745216 = 31325^2 + 16904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1267000841 is a prime.

It is a super-2 number, since 2×1267000841² = 3210582262189414562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1267000811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633500420 + 633500421.

It is an arithmetic number, because the mean of its divisors is an integer number (633500421).

Almost surely, 2^1267000841 is an apocalyptic number.

It is an amenable number.

1267000841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267000841 is an equidigital number, since it uses as much as digits as its factorization.

1267000841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1267000841 is about 35594.9552745891. The cubic root of 1267000841 is about 1082.0789974815.

The spelling of 1267000841 in words is "one billion, two hundred sixty-seven million, eight hundred forty-one", and thus it is an aban number.