13520791 has 8 divisors (see below), whose sum is σ = 13994640. Its totient is φ = 13054272.

The previous prime is 13520779. The next prime is 13520807. The reversal of 13520791 is 19702531.

13520791 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13520791 - 2⁹ = 13520279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061 + ... + 5593.

It is an arithmetic number, because the mean of its divisors is an integer number (1749330).

Almost surely, 2^13520791 is an apocalyptic number.

13520791 is a deficient number, since it is larger than the sum of its proper divisors (473849).

13520791 is an equidigital number, since it uses as much as digits as its factorization.

13520791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 13520791 is about 3677.0628224168. The cubic root of 13520791 is about 238.2323308584.

The spelling of 13520791 in words is "thirteen million, five hundred twenty thousand, seven hundred ninety-one".