243225161706242 has 8 divisors (see below), whose sum is σ = 364838051279100. Its totient is φ = 121612477946544.

The previous prime is 243225161706227. The next prime is 243225161706341. The reversal of 243225161706242 is 242607161522342.

It can be written as a sum of positive squares in 2 ways, for example, as 241244918907721 + 1980242798521 = 15532061^2 + 1407211^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48464117 + ... + 53246792.

Almost surely, 2^{243225161706242} is an apocalyptic number.

243225161706242 is a deficient number, since it is larger than the sum of its proper divisors (121612889572858).

243225161706242 is a wasteful number, since it uses less digits than its factorization.

243225161706242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102906580.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 243225161706242 in words is "two hundred forty-three trillion, two hundred twenty-five billion, one hundred sixty-one million, seven hundred six thousand, two hundred forty-two".