13502705 has 4 divisors (see below), whose sum is σ = 16203252. Its totient is φ = 10802160.

The previous prime is 13502693. The next prime is 13502707. The reversal of 13502705 is 50720531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50720531 = 1831 ⋅27701.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 4669921 = 2972^2 + 2161^2 .

It is not a de Polignac number, because 13502705 - 2¹⁰ = 13501681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13502707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350266 + ... + 1350275.

It is an arithmetic number, because the mean of its divisors is an integer number (4050813).

Almost surely, 2^13502705 is an apocalyptic number.

It is an amenable number.

13502705 is a deficient number, since it is larger than the sum of its proper divisors (2700547).

13502705 is an equidigital number, since it uses as much as digits as its factorization.

13502705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700546.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 13502705 is about 3674.6026996126. The cubic root of 13502705 is about 238.1260601400.

The spelling of 13502705 in words is "thirteen million, five hundred two thousand, seven hundred five".