85143516 has 24 divisors (see below), whose sum is σ = 207306624. Its totient is φ = 27147120.

The previous prime is 85143491. The next prime is 85143529. The reversal of 85143516 is 61534158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153970 + ... + 154521.

It is an arithmetic number, because the mean of its divisors is an integer number (8637776).

Almost surely, 2^85143516 is an apocalyptic number.

It is an amenable number.

85143516 is an abundant number, since it is smaller than the sum of its proper divisors (122163108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85143516 is a wasteful number, since it uses less digits than its factorization.

85143516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308521 (or 308519 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 85143516 is about 9227.3244226049. The cubic root of 85143516 is about 439.9302850980.

The spelling of 85143516 in words is "eighty-five million, one hundred forty-three thousand, five hundred sixteen".