13545905 has 8 divisors (see below), whose sum is σ = 16291392. Its totient is φ = 10812528.

The previous prime is 13545799. The next prime is 13545907. The reversal of 13545905 is 50954531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13545905 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13545907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (2036424).

Almost surely, 2^13545905 is an apocalyptic number.

It is an amenable number.

13545905 is a deficient number, since it is larger than the sum of its proper divisors (2745487).

13545905 is an equidigital number, since it uses as much as digits as its factorization.

13545905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 13545905 is about 3680.4761920165. The cubic root of 13545905 is about 238.3797400411.

The spelling of 13545905 in words is "thirteen million, five hundred forty-five thousand, nine hundred five".