13803745 has 16 divisors (see below), whose sum is σ = 17635968. Its totient is φ = 10336000.

The previous prime is 13803743. The next prime is 13803793. The reversal of 13803745 is 54730831.

It is not a de Polignac number, because 13803745 - 2¹ = 13803743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13803743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21012 + ... + 21658.

It is an arithmetic number, because the mean of its divisors is an integer number (1102248).

Almost surely, 2^13803745 is an apocalyptic number.

It is an amenable number.

13803745 is a deficient number, since it is larger than the sum of its proper divisors (3832223).

13803745 is a wasteful number, since it uses less digits than its factorization.

13803745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 13803745 is about 3715.3391500642. The cubic root of 13803745 is about 239.8827262694.

The spelling of 13803745 in words is "thirteen million, eight hundred three thousand, seven hundred forty-five".