8238116137 has 4 divisors (see below), whose sum is σ = 8238338820. Its totient is φ = 8237893456.

The previous prime is 8238116099. The next prime is 8238116141. The reversal of 8238116137 is 7316118328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 818188816 + 7419927321 = 28604^2 + 86139^2 .

It is a cyclic number.

It is not a de Polignac number, because 8238116137 - 2¹⁹ = 8237591849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8238116137.

It is not an unprimeable number, because it can be changed into a prime (8238111137) 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, 41062 + ... + 134767.

It is an arithmetic number, because the mean of its divisors is an integer number (2059584705).

Almost surely, 2^8238116137 is an apocalyptic number.

It is an amenable number.

8238116137 is a deficient number, since it is larger than the sum of its proper divisors (222683).

8238116137 is a wasteful number, since it uses less digits than its factorization.

8238116137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222682.

The product of its digits is 48384, while the sum is 40.

The square root of 8238116137 is about 90764.0685348558. The cubic root of 8238116137 is about 2019.6493310993.

The spelling of 8238116137 in words is "eight billion, two hundred thirty-eight million, one hundred sixteen thousand, one hundred thirty-seven".