1270878841 has 2 divisors, whose sum is σ = 1270878842. Its totient is φ = 1270878840.

The previous prime is 1270878839. The next prime is 1270878853. The reversal of 1270878841 is 1488780721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100315241 + 170563600 = 33171^2 + 13060^2 .

It is an emirp because it is prime and its reverse (1488780721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1270878841 - 2¹ = 1270878839 is a prime.

Together with 1270878839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1270878791 and 1270878800.

It is not a weakly prime, because it can be changed into another prime (1270878811) 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, 635439420 + 635439421.

It is an arithmetic number, because the mean of its divisors is an integer number (635439421).

Almost surely, 2^1270878841 is an apocalyptic number.

It is an amenable number.

1270878841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270878841 is an equidigital number, since it uses as much as digits as its factorization.

1270878841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 1270878841 is about 35649.3876665505. The cubic root of 1270878841 is about 1083.1818718639.

The spelling of 1270878841 in words is "one billion, two hundred seventy million, eight hundred seventy-eight thousand, eight hundred forty-one".