200129857 has 2 divisors, whose sum is σ = 200129858. Its totient is φ = 200129856.

The previous prime is 200129851. The next prime is 200129861. The reversal of 200129857 is 758921002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186022321 + 14107536 = 13639^2 + 3756^2 .

It is a cyclic number.

It is not a de Polignac number, because 200129857 - 2²⁷ = 65912129 is a prime.

It is not a weakly prime, because it can be changed into another prime (200129851) 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, 100064928 + 100064929.

It is an arithmetic number, because the mean of its divisors is an integer number (100064929).

Almost surely, 2^200129857 is an apocalyptic number.

It is an amenable number.

200129857 is a deficient number, since it is larger than the sum of its proper divisors (1).

200129857 is an equidigital number, since it uses as much as digits as its factorization.

200129857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 200129857 is about 14146.7260169977. The cubic root of 200129857 is about 584.9300883167.

The spelling of 200129857 in words is "two hundred million, one hundred twenty-nine thousand, eight hundred fifty-seven".