27138115 has 16 divisors (see below), whose sum is σ = 33300000. Its totient is φ = 21226752.

The previous prime is 27138109. The next prime is 27138119. The reversal of 27138115 is 51183172.

It is a cyclic number.

It is not a de Polignac number, because 27138115 - 2¹⁹ = 26613827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27138119) 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 15 ways as a sum of consecutive naturals, for example, 54136 + ... + 54634.

It is an arithmetic number, because the mean of its divisors is an integer number (2081250).

Almost surely, 2^27138115 is an apocalyptic number.

27138115 is a deficient number, since it is larger than the sum of its proper divisors (6161885).

27138115 is a wasteful number, since it uses less digits than its factorization.

27138115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 1680, while the sum is 28.

The square root of 27138115 is about 5209.4255921359. The cubic root of 27138115 is about 300.5106672736.

The spelling of 27138115 in words is "twenty-seven million, one hundred thirty-eight thousand, one hundred fifteen".