13713845 has 4 divisors (see below), whose sum is σ = 16456620. Its totient is φ = 10971072.

The previous prime is 13713829. The next prime is 13713851. The reversal of 13713845 is 54831731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54831731 = 3631 ⋅15101.

It can be written as a sum of positive squares in 2 ways, for example, as 6959044 + 6754801 = 2638^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 13713845 - 2⁴ = 13713829 is a prime.

It is a Curzon number.

It is a congruent 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, 1371380 + ... + 1371389.

It is an arithmetic number, because the mean of its divisors is an integer number (4114155).

Almost surely, 2^13713845 is an apocalyptic number.

It is an amenable number.

13713845 is a deficient number, since it is larger than the sum of its proper divisors (2742775).

13713845 is an equidigital number, since it uses as much as digits as its factorization.

13713845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742774.

The product of its digits is 10080, while the sum is 32.

The square root of 13713845 is about 3703.2208953828. The cubic root of 13713845 is about 239.3608281938.

The spelling of 13713845 in words is "thirteen million, seven hundred thirteen thousand, eight hundred forty-five".