27185139 has 28 divisors (see below), whose sum is σ = 41315400. Its totient is φ = 17877024.

The previous prime is 27185117. The next prime is 27185141. The reversal of 27185139 is 93158172.

It is not a de Polignac number, because 27185139 - 2⁵ = 27185107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27185189) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 64672 + ... + 65090.

It is an arithmetic number, because the mean of its divisors is an integer number (1475550).

Almost surely, 2^27185139 is an apocalyptic number.

27185139 is a deficient number, since it is larger than the sum of its proper divisors (14130261).

27185139 is an frugal number, since it uses more digits than its factorization.

27185139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 511 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 27185139 is about 5213.9369961671. The cubic root of 27185139 is about 300.6841386617.

The spelling of 27185139 in words is "twenty-seven million, one hundred eighty-five thousand, one hundred thirty-nine".