85137494 has 16 divisors (see below), whose sum is σ = 137985120. Its totient is φ = 39164160.

The previous prime is 85137473. The next prime is 85137527. The reversal of 85137494 is 49473158.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2822 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (8624070).

Almost surely, 2^85137494 is an apocalyptic number.

85137494 is a deficient number, since it is larger than the sum of its proper divisors (52847626).

85137494 is a wasteful number, since it uses less digits than its factorization.

85137494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855.

The product of its digits is 120960, while the sum is 41.

The square root of 85137494 is about 9226.9981033920. The cubic root of 85137494 is about 439.9199131098.

The spelling of 85137494 in words is "eighty-five million, one hundred thirty-seven thousand, four hundred ninety-four".