27218141 has 2 divisors, whose sum is σ = 27218142. Its totient is φ = 27218140.

The previous prime is 27218119. The next prime is 27218143. The reversal of 27218141 is 14181272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 7672900 = 4421^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 27218141 - 2⁶ = 27218077 is a prime.

Together with 27218143, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 27218141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27218143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13609070 + 13609071.

It is an arithmetic number, because the mean of its divisors is an integer number (13609071).

Almost surely, 2^27218141 is an apocalyptic number.

It is an amenable number.

27218141 is a deficient number, since it is larger than the sum of its proper divisors (1).

27218141 is an equidigital number, since it uses as much as digits as its factorization.

27218141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 26.

The square root of 27218141 is about 5217.1008232542. The cubic root of 27218141 is about 300.8057635093.

The spelling of 27218141 in words is "twenty-seven million, two hundred eighteen thousand, one hundred forty-one".