14287561 has 4 divisors (see below), whose sum is σ = 14429124. Its totient is φ = 14146000.

The previous prime is 14287541. The next prime is 14287579. The reversal of 14287561 is 16578241.

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 6553600 + 7733961 = 2560^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 14287561 - 2⁵ = 14287529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14287501) 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, 70630 + ... + 70831.

It is an arithmetic number, because the mean of its divisors is an integer number (3607281).

Almost surely, 2^14287561 is an apocalyptic number.

It is an amenable number.

14287561 is a deficient number, since it is larger than the sum of its proper divisors (141563).

14287561 is a wasteful number, since it uses less digits than its factorization.

14287561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141562.

The product of its digits is 13440, while the sum is 34.

The square root of 14287561 is about 3779.8890195348. The cubic root of 14287561 is about 242.6532053459.

The spelling of 14287561 in words is "fourteen million, two hundred eighty-seven thousand, five hundred sixty-one".