285218671141 has 4 divisors (see below), whose sum is σ = 285322427500. Its totient is φ = 285114914784.

The previous prime is 285218671123. The next prime is 285218671169. The reversal of 285218671141 is 141176812582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162371926116 + 122846745025 = 402954^2 + 350495^2 .

It is a cyclic number.

It is not a de Polignac number, because 285218671141 - 2⁹ = 285218670629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285218671091 and 285218671100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285218671541) 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, 51874056 + ... + 51879553.

It is an arithmetic number, because the mean of its divisors is an integer number (71330606875).

Almost surely, 2^285218671141 is an apocalyptic number.

It is an amenable number.

285218671141 is a deficient number, since it is larger than the sum of its proper divisors (103756359).

285218671141 is a wasteful number, since it uses less digits than its factorization.

285218671141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103756358.

The product of its digits is 215040, while the sum is 46.

The spelling of 285218671141 in words is "two hundred eighty-five billion, two hundred eighteen million, six hundred seventy-one thousand, one hundred forty-one".