85143560 has 32 divisors (see below), whose sum is σ = 201657600. Its totient is φ = 32264640.

The previous prime is 85143557. The next prime is 85143589. The reversal of 85143560 is 6534158.

It is a happy 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, 55256 + ... + 56775.

It is an arithmetic number, because the mean of its divisors is an integer number (6301800).

Almost surely, 2^85143560 is an apocalyptic number.

It is an amenable number.

85143560 is an abundant number, since it is smaller than the sum of its proper divisors (116514040).

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

85143560 is a wasteful number, since it uses less digits than its factorization.

85143560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112061 (or 112057 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 85143560 is about 9227.3268068276. The cubic root of 85143560 is about 439.9303608796.

The spelling of 85143560 in words is "eighty-five million, one hundred forty-three thousand, five hundred sixty".