27243133 has 6 divisors (see below), whose sum is σ = 27507354. Its totient is φ = 26981424.

The previous prime is 27243121. The next prime is 27243143. The reversal of 27243133 is 33134272.

It can be written as a sum of positive squares in 3 ways, for example, as 5963364 + 21279769 = 2442^2 + 4613^2 .

It is not a de Polignac number, because 27243133 - 2⁵ = 27243101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27243098 and 27243107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27243103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10735 + ... + 13027.

It is an arithmetic number, because the mean of its divisors is an integer number (4584559).

Almost surely, 2^27243133 is an apocalyptic number.

It is an amenable number.

27243133 is a deficient number, since it is larger than the sum of its proper divisors (264221).

27243133 is an equidigital number, since it uses as much as digits as its factorization.

27243133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2402 counting only the distinct ones).

The product of its digits is 3024, while the sum is 25.

The square root of 27243133 is about 5219.4954737024. The cubic root of 27243133 is about 300.8978030778.

The spelling of 27243133 in words is "twenty-seven million, two hundred forty-three thousand, one hundred thirty-three".