85622145 has 32 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 38184960.

The previous prime is 85622143. The next prime is 85622153. The reversal of 85622145 is 54122658.

It is not a de Polignac number, because 85622145 - 2¹ = 85622143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85622143) 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 31 ways as a sum of consecutive naturals, for example, 5640 + ... + 14249.

It is an arithmetic number, because the mean of its divisors is an integer number (5012280).

Almost surely, 2^85622145 is an apocalyptic number.

It is an amenable number.

85622145 is a deficient number, since it is larger than the sum of its proper divisors (74770815).

85622145 is a wasteful number, since it uses less digits than its factorization.

85622145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19945.

The product of its digits is 19200, while the sum is 33.

The square root of 85622145 is about 9253.2234923836. The cubic root of 85622145 is about 440.7530921793.

The spelling of 85622145 in words is "eighty-five million, six hundred twenty-two thousand, one hundred forty-five".