275261542444121 has 2 divisors, whose sum is σ = 275261542444122. Its totient is φ = 275261542444120.

The previous prime is 275261542444067. The next prime is 275261542444157. The reversal of 275261542444121 is 121444245162572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258709370958025 + 16552171486096 = 16084445^2 + 4068436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275261542444121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275261542444121.

It is not a weakly prime, because it can be changed into another prime (275261542444621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137630771222060 + 137630771222061.

It is an arithmetic number, because the mean of its divisors is an integer number (137630771222061).

Almost surely, 2^{275261542444121} is an apocalyptic number.

It is an amenable number.

275261542444121 is a deficient number, since it is larger than the sum of its proper divisors (1).

275261542444121 is an equidigital number, since it uses as much as digits as its factorization.

275261542444121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4300800, while the sum is 50.

The spelling of 275261542444121 in words is "two hundred seventy-five trillion, two hundred sixty-one billion, five hundred forty-two million, four hundred forty-four thousand, one hundred twenty-one".