5281181 has 4 divisors (see below), whose sum is σ = 5285952. Its totient is φ = 5276412.

The previous prime is 5281163. The next prime is 5281201. The reversal of 5281181 is 1811825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5281181 - 2⁶ = 5281117 is a prime.

It is a super-2 number, since 2×5281181² = 55781745509522, which contains 22 as substring.

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 5281181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281151) 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, 236 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (1321488).

Almost surely, 2^5281181 is an apocalyptic number.

It is an amenable number.

5281181 is a deficient number, since it is larger than the sum of its proper divisors (4771).

5281181 is a wasteful number, since it uses less digits than its factorization.

5281181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770.

The product of its digits is 640, while the sum is 26.

The square root of 5281181 is about 2298.0820263864. The cubic root of 5281181 is about 174.1447357850.

The spelling of 5281181 in words is "five million, two hundred eighty-one thousand, one hundred eighty-one".