5427181 has 4 divisors (see below), whose sum is σ = 5431932. Its totient is φ = 5422432.

The previous prime is 5427167. The next prime is 5427203. The reversal of 5427181 is 1817245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2223081 + 3204100 = 1491^2 + 1790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5427181 is a prime.

It is a super-2 number, since 2×5427181² = 58908587213522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5427281) 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, 495 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (1357983).

Almost surely, 2^5427181 is an apocalyptic number.

It is an amenable number.

5427181 is a deficient number, since it is larger than the sum of its proper divisors (4751).

5427181 is a wasteful number, since it uses less digits than its factorization.

5427181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4750.

The product of its digits is 2240, while the sum is 28.

The square root of 5427181 is about 2329.6310866745. The cubic root of 5427181 is about 175.7349337258.

The spelling of 5427181 in words is "five million, four hundred twenty-seven thousand, one hundred eighty-one".