275495161 has 2 divisors, whose sum is σ = 275495162. Its totient is φ = 275495160.

The previous prime is 275495159. The next prime is 275495167. The reversal of 275495161 is 161594572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174372025 + 101123136 = 13205^2 + 10056^2 .

It is a cyclic number.

It is not a de Polignac number, because 275495161 - 2¹ = 275495159 is a prime.

Together with 275495159, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275495167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137747580 + 137747581.

It is an arithmetic number, because the mean of its divisors is an integer number (137747581).

Almost surely, 2^275495161 is an apocalyptic number.

It is an amenable number.

275495161 is a deficient number, since it is larger than the sum of its proper divisors (1).

275495161 is an equidigital number, since it uses as much as digits as its factorization.

275495161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 275495161 is about 16598.0469031751. The cubic root of 275495161 is about 650.6857937412.

The spelling of 275495161 in words is "two hundred seventy-five million, four hundred ninety-five thousand, one hundred sixty-one".