5539181 has 2 divisors, whose sum is σ = 5539182. Its totient is φ = 5539180.

The previous prime is 5539129. The next prime is 5539187. The reversal of 5539181 is 1819355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3363556 + 2175625 = 1834^2 + 1475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5539181 is a prime.

It is a super-2 number, since 2×5539181² = 61365052301522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5539187) 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 as a sum of consecutive naturals, namely, 2769590 + 2769591.

It is an arithmetic number, because the mean of its divisors is an integer number (2769591).

Almost surely, 2^5539181 is an apocalyptic number.

It is an amenable number.

5539181 is a deficient number, since it is larger than the sum of its proper divisors (1).

5539181 is an equidigital number, since it uses as much as digits as its factorization.

5539181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The square root of 5539181 is about 2353.5464728787. The cubic root of 5539181 is about 176.9355846763.

The spelling of 5539181 in words is "five million, five hundred thirty-nine thousand, one hundred eighty-one".