13535645 has 4 divisors (see below), whose sum is σ = 16242780. Its totient is φ = 10828512.

The previous prime is 13535629. The next prime is 13535647. The reversal of 13535645 is 54653531.

13535645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6744409 + 6791236 = 2597^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 13535645 - 2⁴ = 13535629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13535647) 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 3 ways as a sum of consecutive naturals, for example, 1353560 + ... + 1353569.

It is an arithmetic number, because the mean of its divisors is an integer number (4060695).

Almost surely, 2^13535645 is an apocalyptic number.

It is an amenable number.

13535645 is a deficient number, since it is larger than the sum of its proper divisors (2707135).

13535645 is an equidigital number, since it uses as much as digits as its factorization.

13535645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707134.

The product of its digits is 27000, while the sum is 32.

The square root of 13535645 is about 3679.0820866080. The cubic root of 13535645 is about 238.3195399562.

The spelling of 13535645 in words is "thirteen million, five hundred thirty-five thousand, six hundred forty-five".