85045 has 8 divisors (see below), whose sum is σ = 103896. Its totient is φ = 66816.

The previous prime is 85037. The next prime is 85049. The reversal of 85045 is 54058.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 81796 = 57^2 + 286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85045 - 2³ = 85037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249 + ... + 481.

It is an arithmetic number, because the mean of its divisors is an integer number (12987).

2⁸⁵⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

85045 is a deficient number, since it is larger than the sum of its proper divisors (18851).

85045 is a wasteful number, since it uses less digits than its factorization.

85045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 85045 is about 291.6247588940. The cubic root of 85045 is about 43.9760544639.

The spelling of 85045 in words is "eighty-five thousand, forty-five".