16042105 has 4 divisors (see below), whose sum is σ = 19250532. Its totient is φ = 12833680.

The previous prime is 16042079. The next prime is 16042121. The reversal of 16042105 is 50124061.

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 8363664 + 7678441 = 2892^2 + 2771^2 .

It is not a de Polignac number, because 16042105 - 2⁵ = 16042073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1604206 + ... + 1604215.

It is an arithmetic number, because the mean of its divisors is an integer number (4812633).

Almost surely, 2^16042105 is an apocalyptic number.

It is an amenable number.

16042105 is a deficient number, since it is larger than the sum of its proper divisors (3208427).

16042105 is an equidigital number, since it uses as much as digits as its factorization.

16042105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208426.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 16042105 is about 4005.2596669879. The cubic root of 16042105 is about 252.2050537699.

Adding to 16042105 its reverse (50124061), we get a palindrome (66166166).

The spelling of 16042105 in words is "sixteen million, forty-two thousand, one hundred five".