275045 has 4 divisors (see below), whose sum is σ = 330060. Its totient is φ = 220032.

The previous prime is 275039. The next prime is 275047. The reversal of 275045 is 540572.

275045 is nontrivially palindromic in base 15.

275045 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

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 160801 + 114244 = 401^2 + 338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275045 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275047) 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, 27500 + ... + 27509.

It is an arithmetic number, because the mean of its divisors is an integer number (82515).

2²⁷⁵⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

275045 is a deficient number, since it is larger than the sum of its proper divisors (55015).

275045 is an equidigital number, since it uses as much as digits as its factorization.

275045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55014.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 275045 is about 524.4473281465. The cubic root of 275045 is about 65.0331192167.

The spelling of 275045 in words is "two hundred seventy-five thousand, forty-five".