14143561 has 4 divisors (see below), whose sum is σ = 14631300. Its totient is φ = 13655824.

The previous prime is 14143559. The next prime is 14143579. The reversal of 14143561 is 16534141.

14143561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8737936 + 5405625 = 2956^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 14143561 - 2¹ = 14143559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14143501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243826 + ... + 243883.

It is an arithmetic number, because the mean of its divisors is an integer number (3657825).

Almost surely, 2^14143561 is an apocalyptic number.

It is an amenable number.

14143561 is a deficient number, since it is larger than the sum of its proper divisors (487739).

14143561 is an equidigital number, since it uses as much as digits as its factorization.

14143561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487738.

The product of its digits is 1440, while the sum is 25.

The square root of 14143561 is about 3760.7926026305. The cubic root of 14143561 is about 241.8352417697.

The spelling of 14143561 in words is "fourteen million, one hundred forty-three thousand, five hundred sixty-one".