85137488 has 20 divisors (see below), whose sum is σ = 165096948. Its totient is φ = 42531840.

The previous prime is 85137473. The next prime is 85137527. The reversal of 85137488 is 88473158.

It can be written as a sum of positive squares in 2 ways, for example, as 66716224 + 18421264 = 8168^2 + 4292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35198 + ... + 37538.

Almost surely, 2^85137488 is an apocalyptic number.

It is an amenable number.

85137488 is a deficient number, since it is larger than the sum of its proper divisors (79959460).

85137488 is a wasteful number, since it uses less digits than its factorization.

85137488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622 (or 4616 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 85137488 is about 9226.9977782592. The cubic root of 85137488 is about 439.9199027754.

The spelling of 85137488 in words is "eighty-five million, one hundred thirty-seven thousand, four hundred eighty-eight".