27223161 has 8 divisors (see below), whose sum is σ = 41482944. Its totient is φ = 15556080.

The previous prime is 27223159. The next prime is 27223187. The reversal of 27223161 is 16132272.

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

It is not a de Polignac number, because 27223161 - 2¹ = 27223159 is a prime.

It is a super-2 number, since 2×27223161² = 1482200989663842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27223111) 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, 648150 + ... + 648191.

It is an arithmetic number, because the mean of its divisors is an integer number (5185368).

Almost surely, 2^27223161 is an apocalyptic number.

27223161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27223161 is a deficient number, since it is larger than the sum of its proper divisors (14259783).

27223161 is a wasteful number, since it uses less digits than its factorization.

27223161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296351.

The product of its digits is 1008, while the sum is 24.

The square root of 27223161 is about 5217.5819111922. The cubic root of 27223161 is about 300.8242554911.

The spelling of 27223161 in words is "twenty-seven million, two hundred twenty-three thousand, one hundred sixty-one".