8519112161 has 4 divisors (see below), whose sum is σ = 9736128192. Its totient is φ = 7302096132.

The previous prime is 8519112113. The next prime is 8519112167. The reversal of 8519112161 is 1612119158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8519112161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8519112167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608508005 + ... + 608508018.

It is an arithmetic number, because the mean of its divisors is an integer number (2434032048).

Almost surely, 2^8519112161 is an apocalyptic number.

It is an amenable number.

8519112161 is a deficient number, since it is larger than the sum of its proper divisors (1217016031).

8519112161 is a wasteful number, since it uses less digits than its factorization.

8519112161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217016030.

The product of its digits is 4320, while the sum is 35.

The square root of 8519112161 is about 92299.0366201078. The cubic root of 8519112161 is about 2042.3559990904.

The spelling of 8519112161 in words is "eight billion, five hundred nineteen million, one hundred twelve thousand, one hundred sixty-one".