275042 has 8 divisors (see below), whose sum is σ = 416556. Its totient is φ = 136192.

The previous prime is 275039. The next prime is 275047. The reversal of 275042 is 240572.

It can be written as a sum of positive squares in 2 ways, for example, as 231361 + 43681 = 481^2 + 209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (275047) 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 3 ways as a sum of consecutive naturals, for example, 383 + ... + 834.

2²⁷⁵⁰⁴² is an apocalyptic number.

275042 is a deficient number, since it is larger than the sum of its proper divisors (141514).

275042 is a wasteful number, since it uses less digits than its factorization.

275042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 275042 is about 524.4444679849. Note that the first 4 decimals coincide. The cubic root of 275042 is about 65.0328827705.

The spelling of 275042 in words is "two hundred seventy-five thousand, forty-two".