16806133 has 4 divisors (see below), whose sum is σ = 17036428. Its totient is φ = 16575840.

The previous prime is 16806071. The next prime is 16806173. The reversal of 16806133 is 33160861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33160861 = 293 ⋅113177.

It can be written as a sum of positive squares in 2 ways, for example, as 4986289 + 11819844 = 2233^2 + 3438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16806133 is a prime.

It is a super-2 number, since 2×16806133² = 564892212827378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16806173) 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, 115038 + ... + 115183.

It is an arithmetic number, because the mean of its divisors is an integer number (4259107).

Almost surely, 2^16806133 is an apocalyptic number.

It is an amenable number.

16806133 is a deficient number, since it is larger than the sum of its proper divisors (230295).

16806133 is an equidigital number, since it uses as much as digits as its factorization.

16806133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230294.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 16806133 is about 4099.5283875100. The cubic root of 16806133 is about 256.1469950472.

Adding to 16806133 its reverse (33160861), we get a palindrome (49966994).

The spelling of 16806133 in words is "sixteen million, eight hundred six thousand, one hundred thirty-three".