13700305 has 4 divisors (see below), whose sum is σ = 16440372. Its totient is φ = 10960240.

The previous prime is 13700299. The next prime is 13700329. The reversal of 13700305 is 50300731.

13700305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6345361 + 7354944 = 2519^2 + 2712^2 .

It is not a de Polignac number, because 13700305 - 2⁹ = 13699793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370026 + ... + 1370035.

It is an arithmetic number, because the mean of its divisors is an integer number (4110093).

Almost surely, 2^13700305 is an apocalyptic number.

It is an amenable number.

13700305 is a deficient number, since it is larger than the sum of its proper divisors (2740067).

13700305 is an equidigital number, since it uses as much as digits as its factorization.

13700305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740066.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 13700305 is about 3701.3923056061. The cubic root of 13700305 is about 239.2820267388.

The spelling of 13700305 in words is "thirteen million, seven hundred thousand, three hundred five".