27115081 has 6 divisors (see below), whose sum is σ = 31542090. Its totient is φ = 23241456.

The previous prime is 27115057. The next prime is 27115093. The reversal of 27115081 is 18051172.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 1713481 = 5040^2 + 1309^2 .

It is not a de Polignac number, because 27115081 - 2⁹ = 27114569 is a prime.

It is a super-2 number, since 2×27115081² = 1470455235273122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27115031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276636 + ... + 276733.

It is an arithmetic number, because the mean of its divisors is an integer number (5257015).

Almost surely, 2^27115081 is an apocalyptic number.

It is an amenable number.

27115081 is a deficient number, since it is larger than the sum of its proper divisors (4427009).

27115081 is an equidigital number, since it uses as much as digits as its factorization.

27115081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553383 (or 553376 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 27115081 is about 5207.2143224569. The cubic root of 27115081 is about 300.4256217940.

The spelling of 27115081 in words is "twenty-seven million, one hundred fifteen thousand, eighty-one".