243254550140115 has 32 divisors (see below), whose sum is σ = 389282837993280. Its totient is φ = 129710576326656.

The previous prime is 243254550140099. The next prime is 243254550140149. The reversal of 243254550140115 is 511041055452342.

It is not a de Polignac number, because 243254550140115 - 2⁴ = 243254550140099 is a prime.

It is a super-2 number, since 2×243254550140115² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2247454039 + ... + 2247562271.

It is an arithmetic number, because the mean of its divisors is an integer number (12165088687290).

Almost surely, 2^{243254550140115} is an apocalyptic number.

243254550140115 is a deficient number, since it is larger than the sum of its proper divisors (146028287853165).

243254550140115 is a wasteful number, since it uses less digits than its factorization.

243254550140115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135943.

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 243254550140115 in words is "two hundred forty-three trillion, two hundred fifty-four billion, five hundred fifty million, one hundred forty thousand, one hundred fifteen".