1275346841 has 2 divisors, whose sum is σ = 1275346842. Its totient is φ = 1275346840.

The previous prime is 1275346763. The next prime is 1275346843. The reversal of 1275346841 is 1486435721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245807616 + 29539225 = 35296^2 + 5435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275346841 - 2¹⁰ = 1275345817 is a prime.

Together with 1275346843, 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 (1275346843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637673420 + 637673421.

It is an arithmetic number, because the mean of its divisors is an integer number (637673421).

Almost surely, 2^1275346841 is an apocalyptic number.

It is an amenable number.

1275346841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275346841 is an equidigital number, since it uses as much as digits as its factorization.

1275346841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 1275346841 is about 35711.9985579077. The cubic root of 1275346841 is about 1084.4497598644.

The spelling of 1275346841 in words is "one billion, two hundred seventy-five million, three hundred forty-six thousand, eight hundred forty-one".