13425643 has 16 divisors (see below), whose sum is σ = 16897536. Its totient is φ = 10362240.

The previous prime is 13425641. The next prime is 13425653. The reversal of 13425643 is 34652431.

13425643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13425643 - 2¹ = 13425641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425641) 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, 7930 + ... + 9472.

It is an arithmetic number, because the mean of its divisors is an integer number (1056096).

Almost surely, 2^13425643 is an apocalyptic number.

13425643 is a deficient number, since it is larger than the sum of its proper divisors (3471893).

13425643 is a wasteful number, since it uses less digits than its factorization.

13425643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674.

The product of its digits is 8640, while the sum is 28.

The square root of 13425643 is about 3664.1019363549. The cubic root of 13425643 is about 237.6721883367.

The spelling of 13425643 in words is "thirteen million, four hundred twenty-five thousand, six hundred forty-three".