85143029 has 2 divisors, whose sum is σ = 85143030. Its totient is φ = 85143028.

The previous prime is 85143017. The next prime is 85143041. The reversal of 85143029 is 92034158.

It is a balanced prime because it is at equal distance from previous prime (85143017) and next prime (85143041).

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 17656804 = 8215^2 + 4202^2 .

It is a cyclic number.

It is not a de Polignac number, because 85143029 - 2⁴ = 85143013 is a prime.

It is a super-3 number, since 3×85143029³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85142986 and 85143004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85143049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42571514 + 42571515.

It is an arithmetic number, because the mean of its divisors is an integer number (42571515).

Almost surely, 2^85143029 is an apocalyptic number.

It is an amenable number.

85143029 is a deficient number, since it is larger than the sum of its proper divisors (1).

85143029 is an equidigital number, since it uses as much as digits as its factorization.

85143029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85143029 is about 9227.2980335524. The cubic root of 85143029 is about 439.9294463320.

The spelling of 85143029 in words is "eighty-five million, one hundred forty-three thousand, twenty-nine".