242154330434543 has 8 divisors (see below), whose sum is σ = 245768841571968. Its totient is φ = 238539827161944.

The previous prime is 242154330434537. The next prime is 242154330434557. The reversal of 242154330434543 is 345434033451242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242154330434543 - 2⁴² = 237756283923439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242154330134543) 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, 96893180 + ... + 99360942.

It is an arithmetic number, because the mean of its divisors is an integer number (30721105196496).

Almost surely, 2^{242154330434543} is an apocalyptic number.

242154330434543 is a deficient number, since it is larger than the sum of its proper divisors (3614511137425).

242154330434543 is a wasteful number, since it uses less digits than its factorization.

242154330434543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932413.

The product of its (nonzero) digits is 8294400, while the sum is 47.

Adding to 242154330434543 its reverse (345434033451242), we get a palindrome (587588363885785).

The spelling of 242154330434543 in words is "two hundred forty-two trillion, one hundred fifty-four billion, three hundred thirty million, four hundred thirty-four thousand, five hundred forty-three".