243430135254 has 24 divisors (see below), whose sum is σ = 527954726520. Its totient is φ = 81062952768.

The previous prime is 243430135199. The next prime is 243430135261. The reversal of 243430135254 is 452531034342.

243430135254 is a `hidden beast` number, since 2 + 43 + 430 + 135 + 2 + 54 = 666.

243430135254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6683472 + ... + 6719795.

It is an arithmetic number, because the mean of its divisors is an integer number (21998113605).

Almost surely, 2^243430135254 is an apocalyptic number.

243430135254 is an abundant number, since it is smaller than the sum of its proper divisors (284524591266).

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

243430135254 is a wasteful number, since it uses less digits than its factorization.

243430135254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13404284 (or 13404281 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 243430135254 its reverse (452531034342), we get a palindrome (695961169596).

The spelling of 243430135254 in words is "two hundred forty-three billion, four hundred thirty million, one hundred thirty-five thousand, two hundred fifty-four".