285313122 has 24 divisors (see below), whose sum is σ = 620910576. Its totient is φ = 94684056.

The previous prime is 285313109. The next prime is 285313129. The reversal of 285313122 is 221313582.

285313122 is a `hidden beast` number, since 2 + 8 + 531 + 3 + 122 = 666.

It is not an unprimeable number, because it can be changed into a prime (285313129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30828 + ... + 38999.

It is an arithmetic number, because the mean of its divisors is an integer number (25871274).

Almost surely, 2^285313122 is an apocalyptic number.

285313122 is an abundant number, since it is smaller than the sum of its proper divisors (335597454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285313122 is a wasteful number, since it uses less digits than its factorization.

285313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70062 (or 70059 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 285313122 is about 16891.2143435574. The cubic root of 285313122 is about 658.3253549995.

The spelling of 285313122 in words is "two hundred eighty-five million, three hundred thirteen thousand, one hundred twenty-two".