13455643 has 8 divisors (see below), whose sum is σ = 14048640. Its totient is φ = 12872640.

The previous prime is 13455641. The next prime is 13455647. The reversal of 13455643 is 34655431.

13455643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13455643 - 2¹ = 13455641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13455641) 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, 321 + ... + 5197.

It is an arithmetic number, because the mean of its divisors is an integer number (1756080).

Almost surely, 2^13455643 is an apocalyptic number.

13455643 is a deficient number, since it is larger than the sum of its proper divisors (592997).

13455643 is an equidigital number, since it uses as much as digits as its factorization.

13455643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997.

The product of its digits is 21600, while the sum is 31.

The square root of 13455643 is about 3668.1934245620. The cubic root of 13455643 is about 237.8490851746.

The spelling of 13455643 in words is "thirteen million, four hundred fifty-five thousand, six hundred forty-three".