85306545 has 48 divisors (see below), whose sum is σ = 154440000. Its totient is φ = 43505280.

The previous prime is 85306531. The next prime is 85306549. The reversal of 85306545 is 54560358.

85306545 is a `hidden beast` number, since 85 + 30 + 6 + 545 = 666.

It is not a de Polignac number, because 85306545 - 2⁹ = 85306033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85306549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170706 + ... + 171204.

It is an arithmetic number, because the mean of its divisors is an integer number (3217500).

Almost surely, 2^85306545 is an apocalyptic number.

It is an amenable number.

85306545 is a deficient number, since it is larger than the sum of its proper divisors (69133455).

85306545 is a wasteful number, since it uses less digits than its factorization.

85306545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 85306545 is about 9236.1542321466. The cubic root of 85306545 is about 440.2108923603.

The spelling of 85306545 in words is "eighty-five million, three hundred six thousand, five hundred forty-five".