5118231 has 4 divisors (see below), whose sum is σ = 6824312. Its totient is φ = 3412152.

The previous prime is 5118209. The next prime is 5118251. The reversal of 5118231 is 1328115.

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

It is not a de Polignac number, because 5118231 - 2⁵ = 5118199 is a prime.

It is a super-2 number, since 2×5118231² = 52392577138722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5118198 and 5118207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5118251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853036 + ... + 853041.

It is an arithmetic number, because the mean of its divisors is an integer number (1706078).

Almost surely, 2^5118231 is an apocalyptic number.

5118231 is a deficient number, since it is larger than the sum of its proper divisors (1706081).

5118231 is a wasteful number, since it uses less digits than its factorization.

5118231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706080.

The product of its digits is 240, while the sum is 21.

The square root of 5118231 is about 2262.3507685591. The cubic root of 5118231 is about 172.3349229422.

The spelling of 5118231 in words is "five million, one hundred eighteen thousand, two hundred thirty-one".