243115154355 has 16 divisors (see below), whose sum is σ = 388995405984. Its totient is φ = 129657696000.

The previous prime is 243115154311. The next prime is 243115154377. The reversal of 243115154355 is 553451511342.

It is not a de Polignac number, because 243115154355 - 2¹³ = 243115146163 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355855 + ... + 782855.

It is an arithmetic number, because the mean of its divisors is an integer number (24312212874).

Almost surely, 2^243115154355 is an apocalyptic number.

243115154355 is a deficient number, since it is larger than the sum of its proper divisors (145880251629).

243115154355 is a wasteful number, since it uses less digits than its factorization.

243115154355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464966.

The product of its digits is 180000, while the sum is 39.

Adding to 243115154355 its reverse (553451511342), we get a palindrome (796566665697).

The spelling of 243115154355 in words is "two hundred forty-three billion, one hundred fifteen million, one hundred fifty-four thousand, three hundred fifty-five".