275212 has 12 divisors (see below), whose sum is σ = 550480. Its totient is φ = 117936.

The previous prime is 275207. The next prime is 275227. The reversal of 275212 is 212572.

275212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 275212.

It is an unprimeable number.

275212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 4887 + ... + 4942.

2²⁷⁵²¹² is an apocalyptic number.

It is an amenable number.

275212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275212 is a wasteful number, since it uses less digits than its factorization.

275212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840 (or 9838 counting only the distinct ones).

The product of its digits is 280, while the sum is 19.

The square root of 275212 is about 524.6065192123. The cubic root of 275212 is about 65.0462786798.

Adding to 275212 its reverse (212572), we get a palindrome (487784).

The spelling of 275212 in words is "two hundred seventy-five thousand, two hundred twelve".