275461 has 2 divisors, whose sum is σ = 275462. Its totient is φ = 275460.

The previous prime is 275459. The next prime is 275489. The reversal of 275461 is 164572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 44100 = 481^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 275461 - 2¹ = 275459 is a prime.

Together with 275459, it forms a pair of twin primes.

275461 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137730 + 137731.

It is an arithmetic number, because the mean of its divisors is an integer number (137731).

2²⁷⁵⁴⁶¹ is an apocalyptic number.

It is an amenable number.

275461 is a deficient number, since it is larger than the sum of its proper divisors (1).

275461 is an equidigital number, since it uses as much as digits as its factorization.

275461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 25.

The square root of 275461 is about 524.8437862831. The cubic root of 275461 is about 65.0658897932.

Subtracting from 275461 its reverse (164572), we obtain a square (110889 = 333²).

The spelling of 275461 in words is "two hundred seventy-five thousand, four hundred sixty-one".