285145727 has 8 divisors (see below), whose sum is σ = 290674080. Its totient is φ = 279659520.

The previous prime is 285145667. The next prime is 285145801. The reversal of 285145727 is 727541582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285145727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285147727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (36334260).

Almost surely, 2^285145727 is an apocalyptic number.

285145727 is a deficient number, since it is larger than the sum of its proper divisors (5528353).

285145727 is a wasteful number, since it uses less digits than its factorization.

285145727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21073.

The product of its digits is 156800, while the sum is 41.

The square root of 285145727 is about 16886.2585257955. The cubic root of 285145727 is about 658.1965819393.

The spelling of 285145727 in words is "two hundred eighty-five million, one hundred forty-five thousand, seven hundred twenty-seven".