13855445 has 8 divisors (see below), whose sum is σ = 16658136. Its totient is φ = 11063296.

The previous prime is 13855433. The next prime is 13855447. The reversal of 13855445 is 54455831.

It can be written as a sum of positive squares in 4 ways, for example, as 5340721 + 8514724 = 2311^2 + 2918^2 .

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 13855445 - 2¹² = 13851349 is a prime.

It is a super-2 number, since 2×13855445² = 383946712296050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (2082267).

Almost surely, 2^13855445 is an apocalyptic number.

It is an amenable number.

13855445 is a deficient number, since it is larger than the sum of its proper divisors (2802691).

13855445 is an equidigital number, since it uses as much as digits as its factorization.

13855445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271.

The product of its digits is 48000, while the sum is 35.

The square root of 13855445 is about 3722.2902895932. The cubic root of 13855445 is about 240.1818355774.

The spelling of 13855445 in words is "thirteen million, eight hundred fifty-five thousand, four hundred forty-five".