243253164 has 96 divisors (see below), whose sum is σ = 725018112. Its totient is φ = 61632000.

The previous prime is 243253151. The next prime is 243253201. The reversal of 243253164 is 461352342.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34674 + ... + 41094.

It is an arithmetic number, because the mean of its divisors is an integer number (7552272).

Almost surely, 2^243253164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243253164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362509056).

243253164 is an abundant number, since it is smaller than the sum of its proper divisors (481764948).

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

243253164 is a wasteful number, since it uses less digits than its factorization.

243253164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6487 (or 6485 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 243253164 is about 15596.5753933356. The cubic root of 243253164 is about 624.2417804837.

The spelling of 243253164 in words is "two hundred forty-three million, two hundred fifty-three thousand, one hundred sixty-four".