85521136 has 20 divisors (see below), whose sum is σ = 165984912. Its totient is φ = 42686336.

The previous prime is 85521127. The next prime is 85521143. The reversal of 85521136 is 63112558.

It is a junction number, because it is equal to n+sod(n) for n = 85521098 and 85521107.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5541 + ... + 14203.

Almost surely, 2^85521136 is an apocalyptic number.

It is an amenable number.

85521136 is a deficient number, since it is larger than the sum of its proper divisors (80463776).

85521136 is a wasteful number, since it uses less digits than its factorization.

85521136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288 (or 9282 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 85521136 is about 9247.7638378151. The cubic root of 85521136 is about 440.5797042183.

The spelling of 85521136 in words is "eighty-five million, five hundred twenty-one thousand, one hundred thirty-six".