285012193 has 4 divisors (see below), whose sum is σ = 286587028. Its totient is φ = 283437360.

The previous prime is 285012181. The next prime is 285012209. The reversal of 285012193 is 391210582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9684544 + 275327649 = 3112^2 + 16593^2 .

It is a cyclic number.

It is not a de Polignac number, because 285012193 - 2²¹ = 282915041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285012173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787146 + ... + 787507.

It is an arithmetic number, because the mean of its divisors is an integer number (71646757).

Almost surely, 2^285012193 is an apocalyptic number.

It is an amenable number.

285012193 is a deficient number, since it is larger than the sum of its proper divisors (1574835).

285012193 is a wasteful number, since it uses less digits than its factorization.

285012193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574834.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 285012193 is about 16882.3041377651. The cubic root of 285012193 is about 658.0938212132.

The spelling of 285012193 in words is "two hundred eighty-five million, twelve thousand, one hundred ninety-three".