14517661 has 8 divisors (see below), whose sum is σ = 15082200. Its totient is φ = 13957440.

The previous prime is 14517631. The next prime is 14517667. The reversal of 14517661 is 16671541.

It can be written as a sum of positive squares in 4 ways, for example, as 783225 + 13734436 = 885^2 + 3706^2 .

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 14517661 - 2⁹ = 14517149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14517667) 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, 6871 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (1885275).

Almost surely, 2^14517661 is an apocalyptic number.

It is an amenable number.

14517661 is a deficient number, since it is larger than the sum of its proper divisors (564539).

14517661 is a wasteful number, since it uses less digits than its factorization.

14517661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its digits is 5040, while the sum is 31.

The square root of 14517661 is about 3810.2048501360. The cubic root of 14517661 is about 243.9489109645.

It can be divided in two parts, 145176 and 61, that multiplied together give a triangular number (8855736 = T₄₂₀₈).

The spelling of 14517661 in words is "fourteen million, five hundred seventeen thousand, six hundred sixty-one".