16954559 has 4 divisors (see below), whose sum is σ = 17951904. Its totient is φ = 15957216.

The previous prime is 16954549. The next prime is 16954571. The reversal of 16954559 is 95545961.

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

It is a cyclic number.

It is not a de Polignac number, because 16954559 - 2¹² = 16950463 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 (16954549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498647 + ... + 498680.

It is an arithmetic number, because the mean of its divisors is an integer number (4487976).

Almost surely, 2^16954559 is an apocalyptic number.

16954559 is a deficient number, since it is larger than the sum of its proper divisors (997345).

16954559 is an equidigital number, since it uses as much as digits as its factorization.

16954559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997344.

The product of its digits is 243000, while the sum is 44.

The square root of 16954559 is about 4117.5914076071. The cubic root of 16954559 is about 256.8988534433.

The spelling of 16954559 in words is "sixteen million, nine hundred fifty-four thousand, five hundred fifty-nine".