285134918 has 8 divisors (see below), whose sum is σ = 431937360. Its totient is φ = 141155800.

The previous prime is 285134917. The next prime is 285134959. The reversal of 285134918 is 819431582.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285134917) 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, 705578 + ... + 705981.

It is an arithmetic number, because the mean of its divisors is an integer number (53992170).

Almost surely, 2^285134918 is an apocalyptic number.

285134918 is a deficient number, since it is larger than the sum of its proper divisors (146802442).

285134918 is a wasteful number, since it uses less digits than its factorization.

285134918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411662.

The product of its digits is 69120, while the sum is 41.

The square root of 285134918 is about 16885.9384696261. The cubic root of 285134918 is about 658.1882650962.

The spelling of 285134918 in words is "two hundred eighty-five million, one hundred thirty-four thousand, nine hundred eighteen".