85012136 has 32 divisors (see below), whose sum is σ = 174242880. Its totient is φ = 38563200.

The previous prime is 85012133. The next prime is 85012139. The reversal of 85012136 is 63121058.

It is an interprime number because it is at equal distance from previous prime (85012133) and next prime (85012139).

It is not an unprimeable number, because it can be changed into a prime (85012133) by changing a digit.

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, 81941 + ... + 82971.

It is an arithmetic number, because the mean of its divisors is an integer number (5445090).

Almost surely, 2^85012136 is an apocalyptic number.

It is an amenable number.

85012136 is an abundant number, since it is smaller than the sum of its proper divisors (89230744).

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

85012136 is a wasteful number, since it uses less digits than its factorization.

85012136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 85012136 is about 9220.2026008109. The cubic root of 85012136 is about 439.7038916808.

The spelling of 85012136 in words is "eighty-five million, twelve thousand, one hundred thirty-six".