275213 has 4 divisors (see below), whose sum is σ = 291420. Its totient is φ = 259008.

The previous prime is 275207. The next prime is 275227. The reversal of 275213 is 312572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 100489 = 418^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 275213 - 2⁸ = 274957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8078 + ... + 8111.

It is an arithmetic number, because the mean of its divisors is an integer number (72855).

2²⁷⁵²¹³ is an apocalyptic number.

It is an amenable number.

275213 is a deficient number, since it is larger than the sum of its proper divisors (16207).

275213 is a wasteful number, since it uses less digits than its factorization.

275213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16206.

The product of its digits is 420, while the sum is 20.

The square root of 275213 is about 524.6074723067. The cubic root of 275213 is about 65.0463574629.

Adding to 275213 its reverse (312572), we get a palindrome (587785).

It can be divided in two parts, 2 and 75213, that multiplied together give a triangular number (150426 = T₅₄₈).

The spelling of 275213 in words is "two hundred seventy-five thousand, two hundred thirteen".