16205129 has 2 divisors, whose sum is σ = 16205130. Its totient is φ = 16205128.

The previous prime is 16205107. The next prime is 16205141. The reversal of 16205129 is 92150261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8111104 + 8094025 = 2848^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 16205129 - 2⁸ = 16204873 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16205098 and 16205107.

It is not a weakly prime, because it can be changed into another prime (16205159) 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 as a sum of consecutive naturals, namely, 8102564 + 8102565.

It is an arithmetic number, because the mean of its divisors is an integer number (8102565).

Almost surely, 2^16205129 is an apocalyptic number.

It is an amenable number.

16205129 is a deficient number, since it is larger than the sum of its proper divisors (1).

16205129 is an equidigital number, since it uses as much as digits as its factorization.

16205129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16205129 is about 4025.5594642236. The cubic root of 16205129 is about 253.0565002676.

The spelling of 16205129 in words is "sixteen million, two hundred five thousand, one hundred twenty-nine".