85131632 has 10 divisors (see below), whose sum is σ = 164942568. Its totient is φ = 42565808.

The previous prime is 85131623. The next prime is 85131637. The reversal of 85131632 is 23613158.

It is a junction number, because it is equal to n+sod(n) for n = 85131595 and 85131604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85131637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660348 + ... + 2660379.

Almost surely, 2^85131632 is an apocalyptic number.

It is an amenable number.

85131632 is a deficient number, since it is larger than the sum of its proper divisors (79810936).

85131632 is a wasteful number, since it uses less digits than its factorization.

85131632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320735 (or 5320729 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 85131632 is about 9226.6804431496. The cubic root of 85131632 is about 439.9098162277.

The spelling of 85131632 in words is "eighty-five million, one hundred thirty-one thousand, six hundred thirty-two".