16113817 has 4 divisors (see below), whose sum is σ = 16128436. Its totient is φ = 16099200.

The previous prime is 16113787. The next prime is 16113829. The reversal of 16113817 is 71831161.

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 1893376 + 14220441 = 1376^2 + 3771^2 .

It is a cyclic number.

It is not a de Polignac number, because 16113817 - 2¹¹ = 16111769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16113857) 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, 5508 + ... + 7909.

It is an arithmetic number, because the mean of its divisors is an integer number (4032109).

Almost surely, 2^16113817 is an apocalyptic number.

It is an amenable number.

16113817 is a deficient number, since it is larger than the sum of its proper divisors (14619).

16113817 is a wasteful number, since it uses less digits than its factorization.

16113817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14618.

The product of its digits is 1008, while the sum is 28.

The square root of 16113817 is about 4014.2019132077. The cubic root of 16113817 is about 252.5803005718.

Adding to 16113817 its reverse (71831161), we get a palindrome (87944978).

The spelling of 16113817 in words is "sixteen million, one hundred thirteen thousand, eight hundred seventeen".