1006205171 has 2 divisors, whose sum is σ = 1006205172. Its totient is φ = 1006205170.

The previous prime is 1006205147. The next prime is 1006205177. The reversal of 1006205171 is 1715026001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1006205171 - 2⁶ = 1006205107 is a prime.

It is a super-2 number, since 2×1006205171² = 2024897692294278482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1006205177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503102585 + 503102586.

It is an arithmetic number, because the mean of its divisors is an integer number (503102586).

Almost surely, 2^1006205171 is an apocalyptic number.

1006205171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006205171 is an equidigital number, since it uses as much as digits as its factorization.

1006205171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1006205171 is about 31720.7372392257. The cubic root of 1006205171 is about 1002.0641267825.

The spelling of 1006205171 in words is "one billion, six million, two hundred five thousand, one hundred seventy-one".