13745445 has 32 divisors (see below), whose sum is σ = 25386240. Its totient is φ = 6220800.

The previous prime is 13745443. The next prime is 13745461. The reversal of 13745445 is 54454731.

It is not a de Polignac number, because 13745445 - 2¹ = 13745443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745443) 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 31 ways as a sum of consecutive naturals, for example, 10845 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (793320).

Almost surely, 2^13745445 is an apocalyptic number.

13745445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13745445 is a deficient number, since it is larger than the sum of its proper divisors (11640795).

13745445 is a wasteful number, since it uses less digits than its factorization.

13745445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its digits is 33600, while the sum is 33.

The square root of 13745445 is about 3707.4849965981. The cubic root of 13745445 is about 239.5445354860.

The spelling of 13745445 in words is "thirteen million, seven hundred forty-five thousand, four hundred forty-five".