85142136 has 32 divisors (see below), whose sum is σ = 222111360. Its totient is φ = 27146592.

The previous prime is 85142081. The next prime is 85142149. The reversal of 85142136 is 63124158.

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, 76570 + ... + 77673.

It is an arithmetic number, because the mean of its divisors is an integer number (6940980).

Almost surely, 2^85142136 is an apocalyptic number.

It is an amenable number.

85142136 is an abundant number, since it is smaller than the sum of its proper divisors (136969224).

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

85142136 is a wasteful number, since it uses less digits than its factorization.

85142136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154275 (or 154271 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 85142136 is about 9227.2496443957. The cubic root of 85142136 is about 439.9279082990.

The spelling of 85142136 in words is "eighty-five million, one hundred forty-two thousand, one hundred thirty-six".