285788145 has 8 divisors (see below), whose sum is σ = 457261056. Its totient is φ = 152420336.

The previous prime is 285788141. The next prime is 285788171. The reversal of 285788145 is 541887582.

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

It is a cyclic number.

It is not a de Polignac number, because 285788145 - 2² = 285788141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285788094 and 285788103.

It is not an unprimeable number, because it can be changed into a prime (285788141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9526257 + ... + 9526286.

It is an arithmetic number, because the mean of its divisors is an integer number (57157632).

Almost surely, 2^285788145 is an apocalyptic number.

It is an amenable number.

285788145 is a deficient number, since it is larger than the sum of its proper divisors (171472911).

285788145 is a wasteful number, since it uses less digits than its factorization.

285788145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19052551.

The product of its digits is 716800, while the sum is 48.

The square root of 285788145 is about 16905.2697405277. The cubic root of 285788145 is about 658.6905050405.

The spelling of 285788145 in words is "two hundred eighty-five million, seven hundred eighty-eight thousand, one hundred forty-five".