13678057 has 2 divisors, whose sum is σ = 13678058. Its totient is φ = 13678056.

The previous prime is 13678003. The next prime is 13678061. The reversal of 13678057 is 75087631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 2893401 = 3284^2 + 1701^2 .

It is an emirp because it is prime and its reverse (75087631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13678057 - 2¹¹ = 13676009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13678087) 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, 6839028 + 6839029.

It is an arithmetic number, because the mean of its divisors is an integer number (6839029).

Almost surely, 2^13678057 is an apocalyptic number.

It is an amenable number.

13678057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13678057 is an equidigital number, since it uses as much as digits as its factorization.

13678057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 13678057 is about 3698.3857289363. The cubic root of 13678057 is about 239.1524327680.

The spelling of 13678057 in words is "thirteen million, six hundred seventy-eight thousand, fifty-seven".