852171269 has 2 divisors, whose sum is σ = 852171270. Its totient is φ = 852171268.

The previous prime is 852171263. The next prime is 852171277. The reversal of 852171269 is 962171258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851764225 + 407044 = 29185^2 + 638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-852171269 is a prime.

It is a super-2 number, since 2×852171269² = 1452391743418140722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_43687391 and since 852171269 and 43687391 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852171263) 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, 426085634 + 426085635.

It is an arithmetic number, because the mean of its divisors is an integer number (426085635).

Almost surely, 2^852171269 is an apocalyptic number.

It is an amenable number.

852171269 is a deficient number, since it is larger than the sum of its proper divisors (1).

852171269 is an equidigital number, since it uses as much as digits as its factorization.

852171269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 852171269 is about 29191.9726808587. The cubic root of 852171269 is about 948.0741294766.

The spelling of 852171269 in words is "eight hundred fifty-two million, one hundred seventy-one thousand, two hundred sixty-nine".