8124136161 has 4 divisors (see below), whose sum is σ = 10832181552. Its totient is φ = 5416090772.

The previous prime is 8124136151. The next prime is 8124136177. The reversal of 8124136161 is 1616314218.

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 not a de Polignac number, because 8124136161 - 2⁵ = 8124136129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8124136151) 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, 1354022691 + ... + 1354022696.

It is an arithmetic number, because the mean of its divisors is an integer number (2708045388).

Almost surely, 2^8124136161 is an apocalyptic number.

It is an amenable number.

8124136161 is a deficient number, since it is larger than the sum of its proper divisors (2708045391).

8124136161 is a wasteful number, since it uses less digits than its factorization.

8124136161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708045390.

The product of its digits is 6912, while the sum is 33.

The square root of 8124136161 is about 90133.9900426027. The cubic root of 8124136161 is about 2010.2916304162.

The spelling of 8124136161 in words is "eight billion, one hundred twenty-four million, one hundred thirty-six thousand, one hundred sixty-one".