200012129 has 2 divisors, whose sum is σ = 200012130. Its totient is φ = 200012128.

The previous prime is 200012083. The next prime is 200012143. The reversal of 200012129 is 921210002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127080529 + 72931600 = 11273^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 200012129 - 2¹² = 200008033 is a prime.

It is a super-2 number, since 2×200012129² = 80009703494225282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200012149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100006064 + 100006065.

It is an arithmetic number, because the mean of its divisors is an integer number (100006065).

Almost surely, 2^200012129 is an apocalyptic number.

It is an amenable number.

200012129 is a deficient number, since it is larger than the sum of its proper divisors (1).

200012129 is an equidigital number, since it uses as much as digits as its factorization.

200012129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 200012129 is about 14142.5644421371. The cubic root of 200012129 is about 584.8153692073.

The spelling of 200012129 in words is "two hundred million, twelve thousand, one hundred twenty-nine".