13545644 has 12 divisors (see below), whose sum is σ = 27091344. Its totient is φ = 5805264.

The previous prime is 13545629. The next prime is 13545647. The reversal of 13545644 is 44654531.

13545644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

13545644 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 13545644.

It is not an unprimeable number, because it can be changed into a prime (13545647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241859 + ... + 241914.

It is an arithmetic number, because the mean of its divisors is an integer number (2257612).

Almost surely, 2^13545644 is an apocalyptic number.

13545644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13545644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13545644 is a wasteful number, since it uses less digits than its factorization.

13545644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483784 (or 483782 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 13545644 is about 3680.4407344773. The cubic root of 13545644 is about 238.3782090123.

The spelling of 13545644 in words is "thirteen million, five hundred forty-five thousand, six hundred forty-four".