242541105453505 has 4 divisors (see below), whose sum is σ = 291049326544212. Its totient is φ = 194032884362800.

The previous prime is 242541105453473. The next prime is 242541105453533. The reversal of 242541105453505 is 505354501145242.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 128040811822144 + 114500293631361 = 11315512^2 + 10700481^2 .

It is not a de Polignac number, because 242541105453505 - 2⁵ = 242541105453473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24254110545346 + ... + 24254110545355.

It is an arithmetic number, because the mean of its divisors is an integer number (72762331636053).

Almost surely, 2^{242541105453505} is an apocalyptic number.

It is an amenable number.

242541105453505 is a deficient number, since it is larger than the sum of its proper divisors (48508221090707).

242541105453505 is an equidigital number, since it uses as much as digits as its factorization.

242541105453505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48508221090706.

The product of its (nonzero) digits is 2400000, while the sum is 46.

Adding to 242541105453505 its reverse (505354501145242), we get a palindrome (747895606598747).

The spelling of 242541105453505 in words is "two hundred forty-two trillion, five hundred forty-one billion, one hundred five million, four hundred fifty-three thousand, five hundred five".