13725843 has 4 divisors (see below), whose sum is σ = 18301128. Its totient is φ = 9150560.

The previous prime is 13725841. The next prime is 13725889. The reversal of 13725843 is 34852731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34852731 = 3 ⋅11617577.

It is a cyclic number.

It is not a de Polignac number, because 13725843 - 2¹ = 13725841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13725841) 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, 2287638 + ... + 2287643.

It is an arithmetic number, because the mean of its divisors is an integer number (4575282).

Almost surely, 2^13725843 is an apocalyptic number.

13725843 is a deficient number, since it is larger than the sum of its proper divisors (4575285).

13725843 is an equidigital number, since it uses as much as digits as its factorization.

13725843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575284.

The product of its digits is 20160, while the sum is 33.

The square root of 13725843 is about 3704.8404823960. The cubic root of 13725843 is about 239.4306120294.

The spelling of 13725843 in words is "thirteen million, seven hundred twenty-five thousand, eight hundred forty-three".