275651161 has 2 divisors, whose sum is σ = 275651162. Its totient is φ = 275651160.

The previous prime is 275651149. The next prime is 275651197. The reversal of 275651161 is 161156572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274101136 + 1550025 = 16556^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 275651161 - 2¹¹ = 275649113 is a prime.

It is not a weakly prime, because it can be changed into another prime (275651111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137825580 + 137825581.

It is an arithmetic number, because the mean of its divisors is an integer number (137825581).

Almost surely, 2^275651161 is an apocalyptic number.

It is an amenable number.

275651161 is a deficient number, since it is larger than the sum of its proper divisors (1).

275651161 is an equidigital number, since it uses as much as digits as its factorization.

275651161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 275651161 is about 16602.7455861975. The cubic root of 275651161 is about 650.8085881912.

It can be divided in two parts, 2756511 and 61, that added together give a palindrome (2756572).

The spelling of 275651161 in words is "two hundred seventy-five million, six hundred fifty-one thousand, one hundred sixty-one".