13102857 has 16 divisors (see below), whose sum is σ = 19615680. Its totient is φ = 8643456.

The previous prime is 13102853. The next prime is 13102871. The reversal of 13102857 is 75820131.

It is not a de Polignac number, because 13102857 - 2² = 13102853 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13102857.

It is not an unprimeable number, because it can be changed into a prime (13102853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118 + ... + 5120.

It is an arithmetic number, because the mean of its divisors is an integer number (1225980).

Almost surely, 2^13102857 is an apocalyptic number.

It is an amenable number.

13102857 is a deficient number, since it is larger than the sum of its proper divisors (6512823).

13102857 is an equidigital number, since it uses as much as digits as its factorization.

13102857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5103 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 13102857 is about 3619.7868721791. The cubic root of 13102857 is about 235.7519717784.

Adding to 13102857 its reverse (75820131), we get a palindrome (88922988).

The spelling of 13102857 in words is "thirteen million, one hundred two thousand, eight hundred fifty-seven".