1375128017 has 2 divisors, whose sum is σ = 1375128018. Its totient is φ = 1375128016.

The previous prime is 1375127959. The next prime is 1375128031. The reversal of 1375128017 is 7108215731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103834176 + 271293841 = 33224^2 + 16471^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375128017 - 2⁶ = 1375127953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375128067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687564008 + 687564009.

It is an arithmetic number, because the mean of its divisors is an integer number (687564009).

Almost surely, 2^1375128017 is an apocalyptic number.

It is an amenable number.

1375128017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375128017 is an equidigital number, since it uses as much as digits as its factorization.

1375128017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 1375128017 is about 37082.7185761778. The cubic root of 1375128017 is about 1112.0245541845.

The spelling of 1375128017 in words is "one billion, three hundred seventy-five million, one hundred twenty-eight thousand, seventeen".