85200169 has 2 divisors, whose sum is σ = 85200170. Its totient is φ = 85200168.

The previous prime is 85200149. The next prime is 85200191. The reversal of 85200169 is 96100258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76790169 + 8410000 = 8763^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 85200169 - 2¹¹ = 85198121 is a prime.

It is a super-2 number, since 2×85200169² = 14518137595257122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85200169.

It is not a weakly prime, because it can be changed into another prime (85200149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42600084 + 42600085.

It is an arithmetic number, because the mean of its divisors is an integer number (42600085).

Almost surely, 2^85200169 is an apocalyptic number.

It is an amenable number.

85200169 is a deficient number, since it is larger than the sum of its proper divisors (1).

85200169 is an equidigital number, since it uses as much as digits as its factorization.

85200169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 85200169 is about 9230.3937619150. The cubic root of 85200169 is about 440.0278374261.

The spelling of 85200169 in words is "eighty-five million, two hundred thousand, one hundred sixty-nine".