85282138 has 4 divisors (see below), whose sum is σ = 127923210. Its totient is φ = 42641068.

The previous prime is 85282133. The next prime is 85282157. The reversal of 85282138 is 83128258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42810849 + 42471289 = 6543^2 + 6517^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85282097 and 85282106.

It is not an unprimeable number, because it can be changed into a prime (85282133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21320533 + ... + 21320536.

Almost surely, 2^85282138 is an apocalyptic number.

85282138 is a deficient number, since it is larger than the sum of its proper divisors (42641072).

85282138 is a wasteful number, since it uses less digits than its factorization.

85282138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42641071.

The product of its digits is 30720, while the sum is 37.

The square root of 85282138 is about 9234.8328625915. The cubic root of 85282138 is about 440.1689055386.

The spelling of 85282138 in words is "eighty-five million, two hundred eighty-two thousand, one hundred thirty-eight".