13568057 has 4 divisors (see below), whose sum is σ = 14366196. Its totient is φ = 12769920.

The previous prime is 13568041. The next prime is 13568081. The reversal of 13568057 is 75086531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9174841 + 4393216 = 3029^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 13568057 - 2⁴ = 13568041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13568257) 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, 399044 + ... + 399077.

It is an arithmetic number, because the mean of its divisors is an integer number (3591549).

Almost surely, 2^13568057 is an apocalyptic number.

13568057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13568057 is a deficient number, since it is larger than the sum of its proper divisors (798139).

13568057 is an equidigital number, since it uses as much as digits as its factorization.

13568057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798138.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 13568057 is about 3683.4843558783. The cubic root of 13568057 is about 238.5096123066.

The spelling of 13568057 in words is "thirteen million, five hundred sixty-eight thousand, fifty-seven".