5161608231 has 8 divisors (see below), whose sum is σ = 7411540080. Its totient is φ = 3176374272.

The previous prime is 5161608217. The next prime is 5161608247. The reversal of 5161608231 is 1328061615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5161608231 - 2⁹ = 5161607719 is a prime.

It is a super-2 number, since 2×5161608231² = 53284399060653898722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5161608192 and 5161608201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161608251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66174426 + ... + 66174503.

It is an arithmetic number, because the mean of its divisors is an integer number (926442510).

Almost surely, 2^5161608231 is an apocalyptic number.

5161608231 is a deficient number, since it is larger than the sum of its proper divisors (2249931849).

5161608231 is a wasteful number, since it uses less digits than its factorization.

5161608231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132348945.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 5161608231 is about 71844.3333256006. Note that the first 4 decimals coincide. The cubic root of 5161608231 is about 1728.2040269023.

Adding to 5161608231 its reverse (1328061615), we get a palindrome (6489669846).

The spelling of 5161608231 in words is "five billion, one hundred sixty-one million, six hundred eight thousand, two hundred thirty-one".