243234525245 has 16 divisors (see below), whose sum is σ = 297408706992. Its totient is φ = 190903265280.

The previous prime is 243234525241. The next prime is 243234525319. The reversal of 243234525245 is 542525432342.

It can be written as a sum of positive squares in 8 ways, for example, as 43659684601 + 199574840644 = 208949^2 + 446738^2 .

It is not a de Polignac number, because 243234525245 - 2² = 243234525241 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 (243234525241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6468719 + ... + 6506211.

It is an arithmetic number, because the mean of its divisors is an integer number (18588044187).

Almost surely, 2^243234525245 is an apocalyptic number.

It is an amenable number.

243234525245 is a deficient number, since it is larger than the sum of its proper divisors (54174181747).

243234525245 is a wasteful number, since it uses less digits than its factorization.

243234525245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62032.

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

Adding to 243234525245 its reverse (542525432342), we get a palindrome (785759957587).

The spelling of 243234525245 in words is "two hundred forty-three billion, two hundred thirty-four million, five hundred twenty-five thousand, two hundred forty-five".