285106851 has 16 divisors (see below), whose sum is σ = 422762400. Its totient is φ = 189899424.

The previous prime is 285106823. The next prime is 285106853. The reversal of 285106851 is 158601582.

It is not a de Polignac number, because 285106851 - 2¹⁹ = 284582563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (285106853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30345 + ... + 38613.

It is an arithmetic number, because the mean of its divisors is an integer number (26422650).

Almost surely, 2^285106851 is an apocalyptic number.

285106851 is a deficient number, since it is larger than the sum of its proper divisors (137655549).

285106851 is a wasteful number, since it uses less digits than its factorization.

285106851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555 (or 9549 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 285106851 is about 16885.1073730670. The cubic root of 285106851 is about 658.1666683303.

The spelling of 285106851 in words is "two hundred eighty-five million, one hundred six thousand, eight hundred fifty-one".