27171121 has 8 divisors (see below), whose sum is σ = 28886400. Its totient is φ = 25484400.

The previous prime is 27171071. The next prime is 27171127. The reversal of 27171121 is 12117172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27171121 - 2¹³ = 27162929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27171092 and 27171101.

It is not an unprimeable number, because it can be changed into a prime (27171127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5161 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (3610800).

Almost surely, 2^27171121 is an apocalyptic number.

It is an amenable number.

27171121 is a deficient number, since it is larger than the sum of its proper divisors (1715279).

27171121 is a wasteful number, since it uses less digits than its factorization.

27171121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279.

The product of its digits is 196, while the sum is 22.

The square root of 27171121 is about 5212.5925411450. The cubic root of 27171121 is about 300.6324472461.

Adding to 27171121 its reverse (12117172), we get a palindrome (39288293).

The spelling of 27171121 in words is "twenty-seven million, one hundred seventy-one thousand, one hundred twenty-one".