243251364 has 12 divisors (see below), whose sum is σ = 567586544. Its totient is φ = 81083784.

The previous prime is 243251363. The next prime is 243251377. The reversal of 243251364 is 463152342.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (243251363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10135462 + ... + 10135485.

Almost surely, 2^243251364 is an apocalyptic number.

It is an amenable number.

243251364 is an abundant number, since it is smaller than the sum of its proper divisors (324335180).

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

243251364 is a wasteful number, since it uses less digits than its factorization.

243251364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20270954 (or 20270952 counting only the distinct ones).

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

The square root of 243251364 is about 15596.5176882534. The cubic root of 243251364 is about 624.2402407463.

The spelling of 243251364 in words is "two hundred forty-three million, two hundred fifty-one thousand, three hundred sixty-four".