16885123 has 4 divisors (see below), whose sum is σ = 16939728. Its totient is φ = 16830520.

The previous prime is 16885103. The next prime is 16885159. The reversal of 16885123 is 32158861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16885123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16885103) 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, 26836 + ... + 27457.

It is an arithmetic number, because the mean of its divisors is an integer number (4234932).

Almost surely, 2^16885123 is an apocalyptic number.

16885123 is a deficient number, since it is larger than the sum of its proper divisors (54605).

16885123 is an equidigital number, since it uses as much as digits as its factorization.

16885123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54604.

The product of its digits is 11520, while the sum is 34.

The square root of 16885123 is about 4109.1511288829. The cubic root of 16885123 is about 256.5476708943.

The spelling of 16885123 in words is "sixteen million, eight hundred eighty-five thousand, one hundred twenty-three".