243155055135 has 16 divisors (see below), whose sum is σ = 389362627296. Its totient is φ = 129577849728.

The previous prime is 243155055131. The next prime is 243155055193. The reversal of 243155055135 is 531550551342.

It is not a de Polignac number, because 243155055135 - 2² = 243155055131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243155055093 and 243155055102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243155055131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6533724 + ... + 6570833.

It is an arithmetic number, because the mean of its divisors is an integer number (24335164206).

Almost surely, 2^243155055135 is an apocalyptic number.

243155055135 is a deficient number, since it is larger than the sum of its proper divisors (146207572161).

243155055135 is a wasteful number, since it uses less digits than its factorization.

243155055135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105802.

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 243155055135 in words is "two hundred forty-three billion, one hundred fifty-five million, fifty-five thousand, one hundred thirty-five".