85149284 has 48 divisors (see below), whose sum is σ = 168435456. Its totient is φ = 37324800.

The previous prime is 85149283. The next prime is 85149293. The reversal of 85149284 is 48294158.

It is not an unprimeable number, because it can be changed into a prime (85149283) 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 15 ways as a sum of consecutive naturals, for example, 314069 + ... + 314339.

It is an arithmetic number, because the mean of its divisors is an integer number (3509072).

Almost surely, 2^85149284 is an apocalyptic number.

It is an amenable number.

85149284 is a deficient number, since it is larger than the sum of its proper divisors (83286172).

85149284 is a wasteful number, since it uses less digits than its factorization.

85149284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 514 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 85149284 is about 9227.6369672847. The cubic root of 85149284 is about 439.9402191509.

The spelling of 85149284 in words is "eighty-five million, one hundred forty-nine thousand, two hundred eighty-four".