13661327 has 2 divisors, whose sum is σ = 13661328. Its totient is φ = 13661326.

The previous prime is 13661321. The next prime is 13661339. The reversal of 13661327 is 72316631.

13661327 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (72316631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13661327 - 2⁴ = 13661311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13661327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13661321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830663 + 6830664.

It is an arithmetic number, because the mean of its divisors is an integer number (6830664).

Almost surely, 2^13661327 is an apocalyptic number.

13661327 is a deficient number, since it is larger than the sum of its proper divisors (1).

13661327 is an equidigital number, since it uses as much as digits as its factorization.

13661327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 13661327 is about 3696.1232392873. The cubic root of 13661327 is about 239.0548883931.

Adding to 13661327 its reverse (72316631), we get a palindrome (85977958).

The spelling of 13661327 in words is "thirteen million, six hundred sixty-one thousand, three hundred twenty-seven".