27135161 has 4 divisors (see below), whose sum is σ = 27165300. Its totient is φ = 27105024.

The previous prime is 27135149. The next prime is 27135169. The reversal of 27135161 is 16153172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4515625 + 22619536 = 2125^2 + 4756^2 .

It is a cyclic number.

It is not a de Polignac number, because 27135161 - 2¹⁰ = 27134137 is a prime.

It is a super-3 number, since 3×27135161³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27135161.

It is not an unprimeable number, because it can be changed into a prime (27135169) 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 3 ways as a sum of consecutive naturals, for example, 13676 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (6791325).

Almost surely, 2^27135161 is an apocalyptic number.

It is an amenable number.

27135161 is a deficient number, since it is larger than the sum of its proper divisors (30139).

27135161 is an equidigital number, since it uses as much as digits as its factorization.

27135161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30138.

The product of its digits is 1260, while the sum is 26.

The square root of 27135161 is about 5209.1420598790. The cubic root of 27135161 is about 300.4997632895.

The spelling of 27135161 in words is "twenty-seven million, one hundred thirty-five thousand, one hundred sixty-one".