16205133 has 24 divisors (see below), whose sum is σ = 26232768. Its totient is φ = 8855616.

The previous prime is 16205129. The next prime is 16205141. The reversal of 16205133 is 33150261.

It is not a de Polignac number, because 16205133 - 2² = 16205129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16205173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 985 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (1093032).

Almost surely, 2^16205133 is an apocalyptic number.

It is an amenable number.

16205133 is a deficient number, since it is larger than the sum of its proper divisors (10027635).

16205133 is a wasteful number, since it uses less digits than its factorization.

16205133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833 (or 4826 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 16205133 is about 4025.5599610489. The cubic root of 16205133 is about 253.0565210887.

Adding to 16205133 its reverse (33150261), we get a palindrome (49355394).

The spelling of 16205133 in words is "sixteen million, two hundred five thousand, one hundred thirty-three".