243201054515 has 16 divisors (see below), whose sum is σ = 298666906560. Its totient is φ = 190060698240.

The previous prime is 243201054479. The next prime is 243201054529. The reversal of 243201054515 is 515450102342.

It is a de Polignac number, because none of the positive numbers 2^k-243201054515 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3103844 + ... + 3181233.

It is an arithmetic number, because the mean of its divisors is an integer number (18666681660).

Almost surely, 2^243201054515 is an apocalyptic number.

243201054515 is a deficient number, since it is larger than the sum of its proper divisors (55465852045).

243201054515 is a wasteful number, since it uses less digits than its factorization.

243201054515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285262.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 243201054515 its reverse (515450102342), we get a palindrome (758651156857).

The spelling of 243201054515 in words is "two hundred forty-three billion, two hundred one million, fifty-four thousand, five hundred fifteen".