16287133 has 4 divisors (see below), whose sum is σ = 16355520. Its totient is φ = 16218748.

The previous prime is 16287119. The next prime is 16287149. The reversal of 16287133 is 33178261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16287133 - 2⁵ = 16287101 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 16287095 and 16287104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16287113) 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, 33835 + ... + 34312.

It is an arithmetic number, because the mean of its divisors is an integer number (4088880).

Almost surely, 2^16287133 is an apocalyptic number.

It is an amenable number.

16287133 is a deficient number, since it is larger than the sum of its proper divisors (68387).

16287133 is an equidigital number, since it uses as much as digits as its factorization.

16287133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68386.

The product of its digits is 6048, while the sum is 31.

The square root of 16287133 is about 4035.7320277739. The cubic root of 16287133 is about 253.4826357138.

The spelling of 16287133 in words is "sixteen million, two hundred eighty-seven thousand, one hundred thirty-three".