27139128 has 32 divisors (see below), whose sum is σ = 70189200. Its totient is φ = 8734208.

The previous prime is 27139121. The next prime is 27139153. The reversal of 27139128 is 82193172.

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 (27139121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18801 + ... + 20192.

Almost surely, 2^27139128 is an apocalyptic number.

It is an amenable number.

27139128 is an abundant number, since it is smaller than the sum of its proper divisors (43050072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27139128 is a wasteful number, since it uses less digits than its factorization.

27139128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39031 (or 39027 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 27139128 is about 5209.5228188386. The cubic root of 27139128 is about 300.5144063385.

The spelling of 27139128 in words is "twenty-seven million, one hundred thirty-nine thousand, one hundred twenty-eight".