13569745 has 8 divisors (see below), whose sum is σ = 18609984. Its totient is φ = 9304944.

The previous prime is 13569739. The next prime is 13569761. The reversal of 13569745 is 54796531.

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

It is a cyclic number.

It is not a de Polignac number, because 13569745 - 2⁷ = 13569617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13569698 and 13569707.

It is an unprimeable number.

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, 193819 + ... + 193888.

It is an arithmetic number, because the mean of its divisors is an integer number (2326248).

Almost surely, 2^13569745 is an apocalyptic number.

It is an amenable number.

13569745 is a deficient number, since it is larger than the sum of its proper divisors (5040239).

13569745 is an equidigital number, since it uses as much as digits as its factorization.

13569745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387719.

The product of its digits is 113400, while the sum is 40.

The square root of 13569745 is about 3683.7134796289. The cubic root of 13569745 is about 238.5195028786.

The spelling of 13569745 in words is "thirteen million, five hundred sixty-nine thousand, seven hundred forty-five".