13386557 has 2 divisors, whose sum is σ = 13386558. Its totient is φ = 13386556.

The previous prime is 13386547. The next prime is 13386577. The reversal of 13386557 is 75568331.

13386557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12348196 + 1038361 = 3514^2 + 1019^2 .

It is an emirp because it is prime and its reverse (75568331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13386557 - 2¹² = 13382461 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 13386557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13386547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6693278 + 6693279.

It is an arithmetic number, because the mean of its divisors is an integer number (6693279).

Almost surely, 2^13386557 is an apocalyptic number.

It is an amenable number.

13386557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13386557 is an equidigital number, since it uses as much as digits as its factorization.

13386557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 13386557 is about 3658.7644089228. The cubic root of 13386557 is about 237.4413195747.

The spelling of 13386557 in words is "thirteen million, three hundred eighty-six thousand, five hundred fifty-seven".