13506791 has 2 divisors, whose sum is σ = 13506792. Its totient is φ = 13506790.

The previous prime is 13506767. The next prime is 13506821. The reversal of 13506791 is 19760531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13506791 - 2²² = 9312487 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13506751) 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 as a sum of consecutive naturals, namely, 6753395 + 6753396.

It is an arithmetic number, because the mean of its divisors is an integer number (6753396).

Almost surely, 2^13506791 is an apocalyptic number.

13506791 is a deficient number, since it is larger than the sum of its proper divisors (1).

13506791 is an equidigital number, since it uses as much as digits as its factorization.

13506791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 13506791 is about 3675.1586360319. The cubic root of 13506791 is about 238.1500771784.

The spelling of 13506791 in words is "thirteen million, five hundred six thousand, seven hundred ninety-one".