13082557 has 2 divisors, whose sum is σ = 13082558. Its totient is φ = 13082556.

The previous prime is 13082551. The next prime is 13082579. The reversal of 13082557 is 75528031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10023556 + 3059001 = 3166^2 + 1749^2 .

It is an emirp because it is prime and its reverse (75528031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13082557 is a prime.

It is equal to p₈₅₄₂₃₉ and since 13082557 and 854239 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13082551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6541278 + 6541279.

It is an arithmetic number, because the mean of its divisors is an integer number (6541279).

Almost surely, 2^13082557 is an apocalyptic number.

It is an amenable number.

13082557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13082557 is an equidigital number, since it uses as much as digits as its factorization.

13082557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 13082557 is about 3616.9817527878. The cubic root of 13082557 is about 235.6301602108.

The spelling of 13082557 in words is "thirteen million, eighty-two thousand, five hundred fifty-seven".