13453643 has 8 divisors (see below), whose sum is σ = 16044288. Its totient is φ = 11030184.

The previous prime is 13453637. The next prime is 13453669. The reversal of 13453643 is 34635431.

13453643 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 13453643 - 2¹⁶ = 13388107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13453603) 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, 41621 + ... + 41942.

It is an arithmetic number, because the mean of its divisors is an integer number (2005536).

Almost surely, 2^13453643 is an apocalyptic number.

13453643 is a deficient number, since it is larger than the sum of its proper divisors (2590645).

13453643 is an equidigital number, since it uses as much as digits as its factorization.

13453643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83593.

The product of its digits is 12960, while the sum is 29.

The square root of 13453643 is about 3667.9208006717. The cubic root of 13453643 is about 237.8373002369.

The spelling of 13453643 in words is "thirteen million, four hundred fifty-three thousand, six hundred forty-three".