285727245 has 16 divisors (see below), whose sum is σ = 484056000. Its totient is φ = 143423744.

The previous prime is 285727231. The next prime is 285727289. The reversal of 285727245 is 542727582.

It is a cyclic number.

It is not a de Polignac number, because 285727245 - 2⁵ = 285727213 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285727197 and 285727206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559995 + ... + 560504.

It is an arithmetic number, because the mean of its divisors is an integer number (30253500).

Almost surely, 2^285727245 is an apocalyptic number.

It is an amenable number.

285727245 is a deficient number, since it is larger than the sum of its proper divisors (198328755).

285727245 is a wasteful number, since it uses less digits than its factorization.

285727245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120524.

The product of its digits is 313600, while the sum is 42.

The square root of 285727245 is about 16903.4684310647. The cubic root of 285727245 is about 658.6437138513.

The spelling of 285727245 in words is "two hundred eighty-five million, seven hundred twenty-seven thousand, two hundred forty-five".