13827109 has 2 divisors, whose sum is σ = 13827110. Its totient is φ = 13827108.

The previous prime is 13827101. The next prime is 13827119. The reversal of 13827109 is 90172831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11710084 + 2117025 = 3422^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 13827109 - 2³ = 13827101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13827101) 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 as a sum of consecutive naturals, namely, 6913554 + 6913555.

It is an arithmetic number, because the mean of its divisors is an integer number (6913555).

Almost surely, 2^13827109 is an apocalyptic number.

It is an amenable number.

13827109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13827109 is an equidigital number, since it uses as much as digits as its factorization.

13827109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 13827109 is about 3718.4820827859. The cubic root of 13827109 is about 240.0179905495.

The spelling of 13827109 in words is "thirteen million, eight hundred twenty-seven thousand, one hundred nine".