13725905 has 8 divisors (see below), whose sum is σ = 16507584. Its totient is φ = 10956400.

The previous prime is 13725889. The next prime is 13725911. The reversal of 13725905 is 50952731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13725905 - 2⁴ = 13725889 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 7 ways as a sum of consecutive naturals, for example, 341 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (2063448).

Almost surely, 2^13725905 is an apocalyptic number.

It is an amenable number.

13725905 is a deficient number, since it is larger than the sum of its proper divisors (2781679).

13725905 is an equidigital number, since it uses as much as digits as its factorization.

13725905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6087.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 13725905 is about 3704.8488498183. The cubic root of 13725905 is about 239.4309725337.

The spelling of 13725905 in words is "thirteen million, seven hundred twenty-five thousand, nine hundred five".