16205125 has 8 divisors (see below), whose sum is σ = 20224152. Its totient is φ = 12964000.

The previous prime is 16205107. The next prime is 16205129. The reversal of 16205125 is 52150261.

16205125 = 2846² + 2847².

It can be written as a sum of positive squares in 4 ways, for example, as 2765569 + 13439556 = 1663^2 + 3666^2 .

It is not a de Polignac number, because 16205125 - 2¹³ = 16196933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16205096 and 16205105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16205129) 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 7 ways as a sum of consecutive naturals, for example, 64696 + ... + 64945.

It is an arithmetic number, because the mean of its divisors is an integer number (2528019).

Almost surely, 2^16205125 is an apocalyptic number.

16205125 is the 2847-th centered square number.

It is an amenable number.

16205125 is a deficient number, since it is larger than the sum of its proper divisors (4019027).

16205125 is an equidigital number, since it uses as much as digits as its factorization.

16205125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129656 (or 129646 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 16205125 is about 4025.5589673982. The cubic root of 16205125 is about 253.0564794465.

Adding to 16205125 its reverse (52150261), we get a palindrome (68355386).

The spelling of 16205125 in words is "sixteen million, two hundred five thousand, one hundred twenty-five".