5081131 has 4 divisors (see below), whose sum is σ = 5543064. Its totient is φ = 4619200.

The previous prime is 5081101. The next prime is 5081149. The reversal of 5081131 is 1311805.

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

It is a cyclic number.

It is not a de Polignac number, because 5081131 - 2¹¹ = 5079083 is a prime.

It is a super-2 number, since 2×5081131² = 51635784478322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

5081131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5081099 and 5081108.

It is not an unprimeable number, because it can be changed into a prime (5081101) 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, 230950 + ... + 230971.

It is an arithmetic number, because the mean of its divisors is an integer number (1385766).

Almost surely, 2^5081131 is an apocalyptic number.

5081131 is a deficient number, since it is larger than the sum of its proper divisors (461933).

5081131 is a wasteful number, since it uses less digits than its factorization.

5081131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461932.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 5081131 is about 2254.1364200066. The cubic root of 5081131 is about 171.9175172391.

Adding to 5081131 its reverse (1311805), we get a palindrome (6392936).

The spelling of 5081131 in words is "five million, eighty-one thousand, one hundred thirty-one".