13000027 has 2 divisors, whose sum is σ = 13000028.
Its totient is φ = 13000026.
The previous prime is 12999997. The next prime is 13000049. The reversal of 13000027 is 72000031.
Adding to 13000027 its reverse (72000031), we get a palindrome (85000058).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13000027 - 215 = 12967259 is a prime.
13000027 is a modest number, since divided by 27 gives 13 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 12999980 and 13000016.
It is not a weakly prime, because it can be changed into another prime (13000327) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500013 + 6500014.
It is an arithmetic number, because the mean of its divisors is an integer number (6500014).
Almost surely, 213000027 is an apocalyptic number.
13000027 is a deficient number, since it is larger than the sum of its proper divisors (1).
13000027 is an equidigital number, since it uses as much as digits as its factorization.
13000027 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 42, while the sum is 13.
The square root of 13000027 is about 3605.5550196884.
Note that the first 3 decimals coincide.
The cubic root of 13000027 is about 235.1336315567.
The spelling of 13000027 in words is "thirteen million, twenty-seven", and thus it is an aban number and an uban number.