275161 has 2 divisors, whose sum is σ = 275162. Its totient is φ = 275160.

The previous prime is 275159. The next prime is 275167. The reversal of 275161 is 161572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 4761 = 520^2 + 69^2 .

It is a cyclic number.

It is not a de Polignac number, because 275161 - 2¹ = 275159 is a prime.

Together with 275159, it forms a pair of twin primes.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (275167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137580 + 137581.

It is an arithmetic number, because the mean of its divisors is an integer number (137581).

2²⁷⁵¹⁶¹ is an apocalyptic number.

It is an amenable number.

275161 is a deficient number, since it is larger than the sum of its proper divisors (1).

275161 is an equidigital number, since it uses as much as digits as its factorization.

275161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 22.

The square root of 275161 is about 524.5579091006. The cubic root of 275161 is about 65.0422604864.

The spelling of 275161 in words is "two hundred seventy-five thousand, one hundred sixty-one".