985145 has 12 divisors (see below), whose sum is σ = 1375524. Its totient is φ = 675360.

The previous prime is 985129. The next prime is 985151. The reversal of 985145 is 541589.

It can be written as a sum of positive squares in 2 ways, for example, as 182329 + 802816 = 427^2 + 896^2 .

It is not a de Polignac number, because 985145 - 2⁴ = 985129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 985145.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1766 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (114627).

2⁹⁸⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

985145 is a deficient number, since it is larger than the sum of its proper divisors (390379).

985145 is a wasteful number, since it uses less digits than its factorization.

985145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040 (or 4033 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 985145 is about 992.5447093204. The cubic root of 985145 is about 99.5023609955.

Subtracting from 985145 its reverse (541589), we obtain a square (443556 = 666²).

The spelling of 985145 in words is "nine hundred eighty-five thousand, one hundred forty-five".