13160857 has 4 divisors (see below), whose sum is σ = 13168180. Its totient is φ = 13153536.

The previous prime is 13160837. The next prime is 13160887. The reversal of 13160857 is 75806131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 8649481 = 2124^2 + 2941^2 .

It is a cyclic number.

It is not a de Polignac number, because 13160857 - 2¹¹ = 13158809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13160827) 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 in 3 ways as a sum of consecutive naturals, for example, 1093 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (3292045).

Almost surely, 2^13160857 is an apocalyptic number.

It is an amenable number.

13160857 is a deficient number, since it is larger than the sum of its proper divisors (7323).

13160857 is an equidigital number, since it uses as much as digits as its factorization.

13160857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7322.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 13160857 is about 3627.7895473690. The cubic root of 13160857 is about 236.0993130324.

Adding to 13160857 its reverse (75806131), we get a palindrome (88966988).

The spelling of 13160857 in words is "thirteen million, one hundred sixty thousand, eight hundred fifty-seven".