13725785 has 4 divisors (see below), whose sum is σ = 16470948. Its totient is φ = 10980624.

The previous prime is 13725769. The next prime is 13725841. The reversal of 13725785 is 58752731.

It is a happy number.

13725785 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 7639696 + 6086089 = 2764^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 13725785 - 2⁴ = 13725769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1372574 + ... + 1372583.

It is an arithmetic number, because the mean of its divisors is an integer number (4117737).

Almost surely, 2^13725785 is an apocalyptic number.

It is an amenable number.

13725785 is a deficient number, since it is larger than the sum of its proper divisors (2745163).

13725785 is an equidigital number, since it uses as much as digits as its factorization.

13725785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745162.

The product of its digits is 58800, while the sum is 38.

The square root of 13725785 is about 3704.8326547902. The cubic root of 13725785 is about 239.4302747825.

The spelling of 13725785 in words is "thirteen million, seven hundred twenty-five thousand, seven hundred eighty-five".