13160557 has 2 divisors, whose sum is σ = 13160558. Its totient is φ = 13160556.

The previous prime is 13160509. The next prime is 13160561. The reversal of 13160557 is 75506131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9084196 + 4076361 = 3014^2 + 2019^2 .

It is an emirp because it is prime and its reverse (75506131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13160557 - 2⁷ = 13160429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13160507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6580278 + 6580279.

It is an arithmetic number, because the mean of its divisors is an integer number (6580279).

Almost surely, 2^13160557 is an apocalyptic number.

It is an amenable number.

13160557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13160557 is an equidigital number, since it uses as much as digits as its factorization.

13160557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 13160557 is about 3627.7481996412. The cubic root of 13160557 is about 236.0975190679.

Adding to 13160557 its reverse (75506131), we get a palindrome (88666688).

The spelling of 13160557 in words is "thirteen million, one hundred sixty thousand, five hundred fifty-seven".