85452229 has 2 divisors, whose sum is σ = 85452230. Its totient is φ = 85452228.

The previous prime is 85452187. The next prime is 85452281. The reversal of 85452229 is 92225458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82319329 + 3132900 = 9073^2 + 1770^2 .

It is a cyclic number.

It is not a de Polignac number, because 85452229 - 2¹⁷ = 85321157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85452629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42726114 + 42726115.

It is an arithmetic number, because the mean of its divisors is an integer number (42726115).

Almost surely, 2^85452229 is an apocalyptic number.

It is an amenable number.

85452229 is a deficient number, since it is larger than the sum of its proper divisors (1).

85452229 is an equidigital number, since it uses as much as digits as its factorization.

85452229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The square root of 85452229 is about 9244.0374836973. The cubic root of 85452229 is about 440.4613429005.

The spelling of 85452229 in words is "eighty-five million, four hundred fifty-two thousand, two hundred twenty-nine".