13159856 has 40 divisors (see below), whose sum is σ = 27252720. Its totient is φ = 6137856.

The previous prime is 13159831. The next prime is 13159879. The reversal of 13159856 is 65895131.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21896 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (681318).

Almost surely, 2^13159856 is an apocalyptic number.

13159856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13159856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13626360).

13159856 is an abundant number, since it is smaller than the sum of its proper divisors (14092864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13159856 is a wasteful number, since it uses less digits than its factorization.

13159856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 687 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 13159856 is about 3627.6515819466. The cubic root of 13159856 is about 236.0933270645.

The spelling of 13159856 in words is "thirteen million, one hundred fifty-nine thousand, eight hundred fifty-six".