115240520133 has 12 divisors (see below), whose sum is σ = 166785566220. Its totient is φ = 76676073216.

The previous prime is 115240520111. The next prime is 115240520191. The reversal of 115240520133 is 331025042511.

115240520133 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 4 + 0 + 520 + 133 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42317838369 + 72922681764 = 205713^2 + 270042^2 .

It is not a de Polignac number, because 115240520133 - 2¹⁰ = 115240519109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115240520097 and 115240520106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115240528133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12573516 + ... + 12582677.

It is an arithmetic number, because the mean of its divisors is an integer number (13898797185).

Almost surely, 2^115240520133 is an apocalyptic number.

It is an amenable number.

115240520133 is a deficient number, since it is larger than the sum of its proper divisors (51545046087).

115240520133 is a wasteful number, since it uses less digits than its factorization.

115240520133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25156708 (or 25156705 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 115240520133 its reverse (331025042511), we get a palindrome (446265562644).

The spelling of 115240520133 in words is "one hundred fifteen billion, two hundred forty million, five hundred twenty thousand, one hundred thirty-three".