27138111 has 48 divisors (see below), whose sum is σ = 49488768. Its totient is φ = 13003200.

The previous prime is 27138109. The next prime is 27138119. The reversal of 27138111 is 11183172.

It is a happy number.

It is not a de Polignac number, because 27138111 - 2¹ = 27138109 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27138119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20376 + ... + 21666.

It is an arithmetic number, because the mean of its divisors is an integer number (1031016).

Almost surely, 2^27138111 is an apocalyptic number.

27138111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27138111 is a deficient number, since it is larger than the sum of its proper divisors (22350657).

27138111 is a wasteful number, since it uses less digits than its factorization.

27138111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1325 counting only the distinct ones).

The product of its digits is 336, while the sum is 24.

The square root of 27138111 is about 5209.4252082164. The cubic root of 27138111 is about 300.5106525091.

The spelling of 27138111 in words is "twenty-seven million, one hundred thirty-eight thousand, one hundred eleven".