1275102166157 has 2 divisors, whose sum is σ = 1275102166158. Its totient is φ = 1275102166156.

The previous prime is 1275102166133. The next prime is 1275102166189. The reversal of 1275102166157 is 7516612015721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1241310167881 + 33791998276 = 1114141^2 + 183826^2 .

It is an emirp because it is prime and its reverse (7516612015721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1275102166157 - 2²⁶ = 1275035057293 is a prime.

It is a super-2 number, since 2×1275102166157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275102166127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637551083078 + 637551083079.

It is an arithmetic number, because the mean of its divisors is an integer number (637551083079).

Almost surely, 2^{1275102166157} is an apocalyptic number.

It is an amenable number.

1275102166157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275102166157 is an equidigital number, since it uses as much as digits as its factorization.

1275102166157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 44.

The spelling of 1275102166157 in words is "one trillion, two hundred seventy-five billion, one hundred two million, one hundred sixty-six thousand, one hundred fifty-seven".