13729168 has 10 divisors (see below), whose sum is σ = 26600294. Its totient is φ = 6864576.

The previous prime is 13729147. The next prime is 13729207. The reversal of 13729168 is 86192731.

13729168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10445824 + 3283344 = 3232^2 + 1812^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429021 + ... + 429052.

Almost surely, 2^13729168 is an apocalyptic number.

It is an amenable number.

13729168 is a deficient number, since it is larger than the sum of its proper divisors (12871126).

13729168 is an equidigital number, since it uses as much as digits as its factorization.

13729168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858081 (or 858075 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 13729168 is about 3705.2891924923. The cubic root of 13729168 is about 239.4499439934.

The spelling of 13729168 in words is "thirteen million, seven hundred twenty-nine thousand, one hundred sixty-eight".