5161823 has 4 divisors (see below), whose sum is σ = 5190840. Its totient is φ = 5132808.

The previous prime is 5161813. The next prime is 5161831. The reversal of 5161823 is 3281615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3281615 = 5 ⋅656323.

It is a cyclic number.

It is not a de Polignac number, because 5161823 - 2⁸ = 5161567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5161792 and 5161801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161813) 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, 14240 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (1297710).

Almost surely, 2^5161823 is an apocalyptic number.

5161823 is a deficient number, since it is larger than the sum of its proper divisors (29017).

5161823 is a wasteful number, since it uses less digits than its factorization.

5161823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016.

The product of its digits is 1440, while the sum is 26.

The square root of 5161823 is about 2271.9645683857. The cubic root of 5161823 is about 172.8227996144.

The spelling of 5161823 in words is "five million, one hundred sixty-one thousand, eight hundred twenty-three".