115445133521523 has 24 divisors (see below), whose sum is σ = 180952168597200. Its totient is φ = 70500844889280.

The previous prime is 115445133521507. The next prime is 115445133521537. The reversal of 115445133521523 is 325125331544511.

115445133521523 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 45 + 1 + 33 + 52 + 1 + 523 = 666.

It is not a de Polignac number, because 115445133521523 - 2⁴ = 115445133521507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115445133521573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3766055448 + ... + 3766086101.

It is an arithmetic number, because the mean of its divisors is an integer number (7539673691550).

Almost surely, 2^{115445133521523} is an apocalyptic number.

115445133521523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115445133521523 is a deficient number, since it is larger than the sum of its proper divisors (65507035075677).

115445133521523 is a wasteful number, since it uses less digits than its factorization.

115445133521523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532141699 (or 7532141696 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 115445133521523 in words is "one hundred fifteen trillion, four hundred forty-five billion, one hundred thirty-three million, five hundred twenty-one thousand, five hundred twenty-three".