275781080149 has 2 divisors, whose sum is σ = 275781080150. Its totient is φ = 275781080148.

The previous prime is 275781080123. The next prime is 275781080219. The reversal of 275781080149 is 941080187572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210593799025 + 65187281124 = 458905^2 + 255318^2 .

It is a cyclic number.

It is not a de Polignac number, because 275781080149 - 2⁵ = 275781080117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275781080096 and 275781080105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275781080749) 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, 137890540074 + 137890540075.

It is an arithmetic number, because the mean of its divisors is an integer number (137890540075).

Almost surely, 2^275781080149 is an apocalyptic number.

It is an amenable number.

275781080149 is a deficient number, since it is larger than the sum of its proper divisors (1).

275781080149 is an equidigital number, since it uses as much as digits as its factorization.

275781080149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 275781080149 in words is "two hundred seventy-five billion, seven hundred eighty-one million, eighty thousand, one hundred forty-nine".