13680291 has 16 divisors (see below), whose sum is σ = 19397664. Its totient is φ = 8546304.

The previous prime is 13680259. The next prime is 13680299. The reversal of 13680291 is 19208631.

13680291 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13680291 - 2⁵ = 13680259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13680299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15535 + ... + 16391.

It is an arithmetic number, because the mean of its divisors is an integer number (1212354).

Almost surely, 2^13680291 is an apocalyptic number.

13680291 is a deficient number, since it is larger than the sum of its proper divisors (5717373).

13680291 is a wasteful number, since it uses less digits than its factorization.

13680291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 13680291 is about 3698.6877402668. The cubic root of 13680291 is about 239.1654520989.

The spelling of 13680291 in words is "thirteen million, six hundred eighty thousand, two hundred ninety-one".