13981027 has 2 divisors, whose sum is σ = 13981028. Its totient is φ = 13981026.

The previous prime is 13981013. The next prime is 13981111. The reversal of 13981027 is 72018931.

It is a weak prime.

It is an emirp because it is prime and its reverse (72018931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13981027 - 2¹⁹ = 13456739 is a prime.

It is equal to p₉₀₈₉₄₁ and since 13981027 and 908941 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13981027.

It is not a weakly prime, because it can be changed into another prime (13981427) 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, 6990513 + 6990514.

It is an arithmetic number, because the mean of its divisors is an integer number (6990514).

Almost surely, 2^13981027 is an apocalyptic number.

13981027 is a deficient number, since it is larger than the sum of its proper divisors (1).

13981027 is an equidigital number, since it uses as much as digits as its factorization.

13981027 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 13981027 is about 3739.1211534263. The cubic root of 13981027 is about 240.9053018898.

Adding to 13981027 its reverse (72018931), we get a palindrome (85999958).

The spelling of 13981027 in words is "thirteen million, nine hundred eighty-one thousand, twenty-seven".