13506765 has 16 divisors (see below), whose sum is σ = 21835968. Its totient is φ = 7128576.

The previous prime is 13506751. The next prime is 13506767. The reversal of 13506765 is 56760531.

13506765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13506765 - 2⁵ = 13506733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13506767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3187 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (1364748).

Almost surely, 2^13506765 is an apocalyptic number.

13506765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13506765 is a deficient number, since it is larger than the sum of its proper divisors (8329203).

13506765 is an equidigital number, since it uses as much as digits as its factorization.

13506765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9388.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 13506765 is about 3675.1550987679. The cubic root of 13506765 is about 238.1499243687.

The spelling of 13506765 in words is "thirteen million, five hundred six thousand, seven hundred sixty-five".