275812 has 12 divisors (see below), whose sum is σ = 492156. Its totient is φ = 135200.

The previous prime is 275783. The next prime is 275813. The reversal of 275812 is 218572.

It can be written as a sum of positive squares in 2 ways, for example, as 69696 + 206116 = 264^2 + 454^2 .

It is not an unprimeable number, because it can be changed into a prime (275813) by changing a digit.

275812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2²⁷⁵⁸¹² is an apocalyptic number.

It is an amenable number.

275812 is a deficient number, since it is larger than the sum of its proper divisors (216344).

275812 is a wasteful number, since it uses less digits than its factorization.

275812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 275812 is about 525.1780650408. The cubic root of 275812 is about 65.0935143133.

The spelling of 275812 in words is "two hundred seventy-five thousand, eight hundred twelve".