14664561 has 8 divisors (see below), whose sum is σ = 20581920. Its totient is φ = 9261792.

The previous prime is 14664541. The next prime is 14664569. The reversal of 14664561 is 16546641.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14664561 - 2⁹ = 14664049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14664569) 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, 128580 + ... + 128693.

It is an arithmetic number, because the mean of its divisors is an integer number (2572740).

Almost surely, 2^14664561 is an apocalyptic number.

It is an amenable number.

14664561 is a deficient number, since it is larger than the sum of its proper divisors (5917359).

14664561 is a wasteful number, since it uses less digits than its factorization.

14664561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257295.

The product of its digits is 17280, while the sum is 33.

The square root of 14664561 is about 3829.4335090193. The cubic root of 14664561 is about 244.7689672685.

It can be divided in two parts, 14664 and 561, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 14664561 in words is "fourteen million, six hundred sixty-four thousand, five hundred sixty-one".