27227161 has 8 divisors (see below), whose sum is σ = 29431304. Its totient is φ = 25038720.

The previous prime is 27227159. The next prime is 27227177. The reversal of 27227161 is 16172272.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 26842761 = 620^2 + 5181^2 .

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 27227161 - 2¹ = 27227159 is a prime.

It is a super-2 number, since 2×27227161² = 1482636592239842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27227191) 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, 180 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (3678913).

Almost surely, 2^27227161 is an apocalyptic number.

It is an amenable number.

27227161 is a deficient number, since it is larger than the sum of its proper divisors (2204143).

27227161 is a wasteful number, since it uses less digits than its factorization.

27227161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851.

The product of its digits is 2352, while the sum is 28.

The square root of 27227161 is about 5217.9652164421. The cubic root of 27227161 is about 300.8389885107.

The spelling of 27227161 in words is "twenty-seven million, two hundred twenty-seven thousand, one hundred sixty-one".