8535172113 has 18 divisors (see below), whose sum is σ = 13349886966. Its totient is φ = 5252412672.

The previous prime is 8535172103. The next prime is 8535172181. The reversal of 8535172113 is 3112715358.

It is a happy number.

8535172113 is a `hidden beast` number, since 8 + 535 + 1 + 7 + 2 + 113 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 10712529 + 8524459584 = 3273^2 + 92328^2 .

It is not a de Polignac number, because 8535172113 - 2⁵ = 8535172081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8535172103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2804256 + ... + 2807297.

It is an arithmetic number, because the mean of its divisors is an integer number (741660387).

Almost surely, 2^8535172113 is an apocalyptic number.

It is an amenable number.

8535172113 is a deficient number, since it is larger than the sum of its proper divisors (4814714853).

8535172113 is a wasteful number, since it uses less digits than its factorization.

8535172113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611585 (or 5611569 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 8535172113 is about 92385.9952211373. The cubic root of 8535172113 is about 2043.6385877375.

It can be divided in two parts, 85351 and 72113, that added together give a cube (157464 = 54³).

The spelling of 8535172113 in words is "eight billion, five hundred thirty-five million, one hundred seventy-two thousand, one hundred thirteen".