243054425345 has 4 divisors (see below), whose sum is σ = 291665310420. Its totient is φ = 194443540272.

The previous prime is 243054425333. The next prime is 243054425347. The reversal of 243054425345 is 543524450342.

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 165545638129 + 77508787216 = 406873^2 + 278404^2 .

It is a cyclic number.

It is not a de Polignac number, because 243054425345 - 2²² = 243050231041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243054425347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24305442530 + ... + 24305442539.

It is an arithmetic number, because the mean of its divisors is an integer number (72916327605).

Almost surely, 2^243054425345 is an apocalyptic number.

It is an amenable number.

243054425345 is a deficient number, since it is larger than the sum of its proper divisors (48610885075).

243054425345 is an equidigital number, since it uses as much as digits as its factorization.

243054425345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48610885074.

The product of its (nonzero) digits is 1152000, while the sum is 41.

Adding to 243054425345 its reverse (543524450342), we get a palindrome (786578875687).

The spelling of 243054425345 in words is "two hundred forty-three billion, fifty-four million, four hundred twenty-five thousand, three hundred forty-five".