275745 has 16 divisors (see below), whose sum is σ = 456192. Its totient is φ = 142080.

The previous prime is 275741. The next prime is 275767. The reversal of 275745 is 547572.

It is not a de Polignac number, because 275745 - 2² = 275741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (28512).

2²⁷⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

275745 is a deficient number, since it is larger than the sum of its proper divisors (180447).

275745 is a wasteful number, since it uses less digits than its factorization.

275745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632.

The product of its digits is 9800, while the sum is 30.

The square root of 275745 is about 525.1142732777. The cubic root of 275745 is about 65.0882430674.

The spelling of 275745 in words is "two hundred seventy-five thousand, seven hundred forty-five".