13107856 has 10 divisors (see below), whose sum is σ = 25396502. Its totient is φ = 6553920.

The previous prime is 13107847. The next prime is 13107893. The reversal of 13107856 is 65870131.

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 32400 = 3616^2 + 180^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409605 + ... + 409636.

Almost surely, 2^13107856 is an apocalyptic number.

13107856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13107856 is a deficient number, since it is larger than the sum of its proper divisors (12288646).

13107856 is an equidigital number, since it uses as much as digits as its factorization.

13107856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819249 (or 819243 counting only the distinct ones).

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

The square root of 13107856 is about 3620.4773165979. The cubic root of 13107856 is about 235.7819493185.

Adding to 13107856 its reverse (65870131), we get a palindrome (78977987).

The spelling of 13107856 in words is "thirteen million, one hundred seven thousand, eight hundred fifty-six".