522045 has 20 divisors (see below), whose sum is σ = 936540. Its totient is φ = 278208.

The previous prime is 522037. The next prime is 522047. The reversal of 522045 is 540225.

It can be written as a sum of positive squares in 2 ways, for example, as 311364 + 210681 = 558^2 + 459^2 .

It is not a de Polignac number, because 522045 - 2³ = 522037 is a prime.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522047) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 240 + ... + 1049.

It is an arithmetic number, because the mean of its divisors is an integer number (46827).

2⁵²²⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

522045 is a deficient number, since it is larger than the sum of its proper divisors (414495).

522045 is a wasteful number, since it uses less digits than its factorization.

522045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 522045 is about 722.5268161113. The cubic root of 522045 is about 80.5197924662.

The spelling of 522045 in words is "five hundred twenty-two thousand, forty-five".