243685122 has 16 divisors (see below), whose sum is σ = 487523232. Its totient is φ = 81202880.

The previous prime is 243685109. The next prime is 243685129. The reversal of 243685122 is 221586342.

It is not an unprimeable number, because it can be changed into a prime (243685129) 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, 34297 + ... + 40787.

It is an arithmetic number, because the mean of its divisors is an integer number (30470202).

Almost surely, 2^243685122 is an apocalyptic number.

243685122 is an abundant number, since it is smaller than the sum of its proper divisors (243838110).

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

243685122 is a wasteful number, since it uses less digits than its factorization.

243685122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12753.

The product of its digits is 23040, while the sum is 33.

The square root of 243685122 is about 15610.4170988478. The cubic root of 243685122 is about 624.6110621206.

The spelling of 243685122 in words is "two hundred forty-three million, six hundred eighty-five thousand, one hundred twenty-two".