243044020245 has 64 divisors (see below), whose sum is σ = 437225048064. Its totient is φ = 114389003520.

The previous prime is 243044020237. The next prime is 243044020301. The reversal of 243044020245 is 542020440342.

It is not a de Polignac number, because 243044020245 - 2³ = 243044020237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 9005862 + ... + 9032808.

It is an arithmetic number, because the mean of its divisors is an integer number (6831641376).

Almost surely, 2^243044020245 is an apocalyptic number.

It is an amenable number.

243044020245 is a deficient number, since it is larger than the sum of its proper divisors (194181027819).

243044020245 is a wasteful number, since it uses less digits than its factorization.

243044020245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29002.

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 243044020245 its reverse (542020440342), we get a palindrome (785064460587).

The spelling of 243044020245 in words is "two hundred forty-three billion, forty-four million, twenty thousand, two hundred forty-five".