85283109 has 12 divisors (see below), whose sum is σ = 123320652. Its totient is φ = 56793600.

The previous prime is 85283089. The next prime is 85283111. The reversal of 85283109 is 90138258.

It can be written as a sum of positive squares in 2 ways, for example, as 64352484 + 20930625 = 8022^2 + 4575^2 .

It is not a de Polignac number, because 85283109 - 2⁸ = 85282853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85283119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4549 + ... + 13829.

It is an arithmetic number, because the mean of its divisors is an integer number (10276721).

Almost surely, 2^85283109 is an apocalyptic number.

It is an amenable number.

85283109 is a deficient number, since it is larger than the sum of its proper divisors (38037543).

85283109 is a wasteful number, since it uses less digits than its factorization.

85283109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10308 (or 10305 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 85283109 is about 9234.8854351313. The cubic root of 85283109 is about 440.1705760814.

The spelling of 85283109 in words is "eighty-five million, two hundred eighty-three thousand, one hundred nine".