242455155240443 has 4 divisors (see below), whose sum is σ = 242462677227048. Its totient is φ = 242447633253840.

The previous prime is 242455155240439. The next prime is 242455155240461. The reversal of 242455155240443 is 344042551554242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242455155240443 - 2² = 242455155240439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242455155240391 and 242455155240400.

It is not an unprimeable number, because it can be changed into a prime (242455155240433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3760944953 + ... + 3761009418.

It is an arithmetic number, because the mean of its divisors is an integer number (60615669306762).

Almost surely, 2^{242455155240443} is an apocalyptic number.

242455155240443 is a deficient number, since it is larger than the sum of its proper divisors (7521986605).

242455155240443 is an equidigital number, since it uses as much as digits as its factorization.

242455155240443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521986604.

The product of its (nonzero) digits is 15360000, while the sum is 50.

The spelling of 242455155240443 in words is "two hundred forty-two trillion, four hundred fifty-five billion, one hundred fifty-five million, two hundred forty thousand, four hundred forty-three".